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From: Bartosz Golaszewski <brgl@bgdev.pl>
To: "Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
	"Sumit Semwal" <sumit.semwal@linaro.org>,
	"Gustavo Padovan" <gustavo@padovan.org>,
	"Christian König" <christian.koenig@amd.com>,
	"Mauro Carvalho Chehab" <mchehab@kernel.org>,
	"Borislav Petkov" <bp@alien8.de>,
	"Tony Luck" <tony.luck@intel.com>,
	"James Morse" <james.morse@arm.com>,
	"Robert Richter" <rric@kernel.org>,
	"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
	"Maxime Ripard" <mripard@kernel.org>,
	"Thomas Zimmermann" <tzimmermann@suse.de>,
	"David Airlie" <airlied@linux.ie>,
	"Daniel Vetter" <daniel@ffwll.ch>,
	"Alexander Shishkin" <alexander.shishkin@linux.intel.com>,
	"Linus Walleij" <linus.walleij@linaro.org>,
	"Michael S . Tsirkin" <mst@redhat.com>,
	"Jason Wang" <jasowang@redhat.com>,
	"Christoph Lameter" <cl@linux.com>,
	"Pekka Enberg" <penberg@kernel.org>,
	"David Rientjes" <rientjes@google.com>,
	"Joonsoo Kim" <iamjoonsoo.kim@lge.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Jaroslav Kysela" <perex@perex.cz>,
	"Takashi Iwai" <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org, kvm@vger.kernel.org,
	linux-mm@kvack.org, Takashi Iwai <tiwai@suse.de>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	dri-devel@lists.freedesktop.org,
	virtualization@lists.linux-foundation.org,
	linaro-mm-sig@lists.linaro.org, linux-gpio@vger.kernel.org,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	linux-media@vger.kernel.org, linux-edac@vger.kernel.org
Subject: [PATCH v2 2/8] ALSA: pcm: use krealloc_array()
Date: Mon,  2 Nov 2020 16:20:31 +0100	[thread overview]
Message-ID: <20201102152037.963-3-brgl@bgdev.pl> (raw)
In-Reply-To: <20201102152037.963-1-brgl@bgdev.pl>

From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

Use the helper that checks for overflows internally instead of manually
calculating the size of the new array.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
---
 sound/core/pcm_lib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index d531e1bc2b81..c6f8f9e252e0 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -1129,8 +1129,8 @@ int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, unsigned int cond,
 	if (constrs->rules_num >= constrs->rules_all) {
 		struct snd_pcm_hw_rule *new;
 		unsigned int new_rules = constrs->rules_all + 16;
-		new = krealloc(constrs->rules, new_rules * sizeof(*c),
-			       GFP_KERNEL);
+		new = krealloc_array(constrs->rules, new_rules,
+				     sizeof(*c), GFP_KERNEL);
 		if (!new) {
 			va_end(args);
 			return -ENOMEM;
-- 
2.29.1


WARNING: multiple messages have this Message-ID (diff)
From: Bartosz Golaszewski <brgl@bgdev.pl>
To: "Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
	"Sumit Semwal" <sumit.semwal@linaro.org>,
	"Gustavo Padovan" <gustavo@padovan.org>,
	"Christian König" <christian.koenig@amd.com>,
	"Mauro Carvalho Chehab" <mchehab@kernel.org>,
	"Borislav Petkov" <bp@alien8.de>,
	"Tony Luck" <tony.luck@intel.com>,
	"James Morse" <james.morse@arm.com>,
	"Robert Richter" <rric@kernel.org>,
	"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
	"Maxime Ripard" <mripard@kernel.org>,
	"Thomas Zimmermann" <tzimmermann@suse.de>,
	"David Airlie" <airlied@linux.ie>,
	"Daniel Vetter" <daniel@ffwll.ch>,
	"Alexander Shishkin" <alexander.shishkin@linux.intel.com>,
	"Linus Walleij" <linus.walleij@linaro.org>,
	"Michael S . Tsirkin" <mst@redhat.com>,
	"Jason Wang" <jasowang@redhat.com>,
	"Christoph Lameter" <cl@linux.com>,
	"Pekka Enberg" <penberg@kernel.org>,
	"David Rientjes" <rientjes@google.com>,
	"Joonsoo Kim" <iamjoonsoo.kim@lge.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Jaroslav Kysela" <perex@perex.cz>,
	"Takashi Iwai" <tiwai@suse.com>
Cc: linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org,
	linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org,
	linux-edac@vger.kernel.org, linux-gpio@vger.kernel.org,
	kvm@vger.kernel.org, virtualization@lists.linux-foundation.org,
	netdev@vger.kernel.org, linux-mm@kvack.org,
	alsa-devel@alsa-project.org,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	Takashi Iwai <tiwai@suse.de>
Subject: [PATCH v2 2/8] ALSA: pcm: use krealloc_array()
Date: Mon,  2 Nov 2020 16:20:31 +0100	[thread overview]
Message-ID: <20201102152037.963-3-brgl@bgdev.pl> (raw)
In-Reply-To: <20201102152037.963-1-brgl@bgdev.pl>

From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

Use the helper that checks for overflows internally instead of manually
calculating the size of the new array.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
---
 sound/core/pcm_lib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index d531e1bc2b81..c6f8f9e252e0 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -1129,8 +1129,8 @@ int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, unsigned int cond,
 	if (constrs->rules_num >= constrs->rules_all) {
 		struct snd_pcm_hw_rule *new;
 		unsigned int new_rules = constrs->rules_all + 16;
-		new = krealloc(constrs->rules, new_rules * sizeof(*c),
-			       GFP_KERNEL);
+		new = krealloc_array(constrs->rules, new_rules,
+				     sizeof(*c), GFP_KERNEL);
 		if (!new) {
 			va_end(args);
 			return -ENOMEM;
-- 
2.29.1


WARNING: multiple messages have this Message-ID (diff)
From: Bartosz Golaszewski <brgl@bgdev.pl>
To: "Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
	"Sumit Semwal" <sumit.semwal@linaro.org>,
	"Gustavo Padovan" <gustavo@padovan.org>,
	"Christian König" <christian.koenig@amd.com>,
	"Mauro Carvalho Chehab" <mchehab@kernel.org>,
	"Borislav Petkov" <bp@alien8.de>,
	"Tony Luck" <tony.luck@intel.com>,
	"James Morse" <james.morse@arm.com>,
	"Robert Richter" <rric@kernel.org>,
	"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
	"Maxime Ripard" <mripard@kernel.org>,
	"Thomas Zimmermann" <tzimmermann@suse.de>,
	"David Airlie" <airlied@linux.ie>,
	"Daniel Vetter" <daniel@ffwll.ch>,
	"Alexander Shishkin" <alexander.shishkin@linux.intel.com>,
	"Linus Walleij" <linus.walleij@linaro.org>,
	"Michael S . Tsirkin" <mst@redhat.com>,
	"Jason Wang" <jasowang@redhat.com>,
	"Christoph Lameter" <cl@linux.com>,
	"Pekka Enberg" <penberg@kernel.org>,
	"David Rientjes" <rientjes@google.com>,
	"Joonsoo Kim" <iamjoonsoo.kim@lge.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Jaroslav Kysela" <perex@perex.cz>,
	"Takashi Iwai" <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org, kvm@vger.kernel.org,
	linux-mm@kvack.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	virtualization@lists.linux-foundation.org,
	linaro-mm-sig@lists.linaro.org, linux-gpio@vger.kernel.org,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	linux-media@vger.kernel.org, linux-edac@vger.kernel.org
Subject: [PATCH v2 2/8] ALSA: pcm: use krealloc_array()
Date: Mon,  2 Nov 2020 16:20:31 +0100	[thread overview]
Message-ID: <20201102152037.963-3-brgl@bgdev.pl> (raw)
In-Reply-To: <20201102152037.963-1-brgl@bgdev.pl>

From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

Use the helper that checks for overflows internally instead of manually
calculating the size of the new array.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
---
 sound/core/pcm_lib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index d531e1bc2b81..c6f8f9e252e0 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -1129,8 +1129,8 @@ int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, unsigned int cond,
 	if (constrs->rules_num >= constrs->rules_all) {
 		struct snd_pcm_hw_rule *new;
 		unsigned int new_rules = constrs->rules_all + 16;
-		new = krealloc(constrs->rules, new_rules * sizeof(*c),
-			       GFP_KERNEL);
+		new = krealloc_array(constrs->rules, new_rules,
+				     sizeof(*c), GFP_KERNEL);
 		if (!new) {
 			va_end(args);
 			return -ENOMEM;
-- 
2.29.1

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

  parent reply	other threads:[~2020-11-03  7:53 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-02 15:20 [PATCH v2 0/8] slab: provide and use krealloc_array() Bartosz Golaszewski
2020-11-02 15:20 ` Bartosz Golaszewski
2020-11-02 15:20 ` Bartosz Golaszewski
2020-11-02 15:20 ` [PATCH v2 1/8] mm: slab: provide krealloc_array() Bartosz Golaszewski
2020-11-02 15:20   ` Bartosz Golaszewski
2020-11-02 15:20   ` Bartosz Golaszewski
2020-11-02 15:41   ` Matthew Wilcox
2020-11-02 15:41     ` Matthew Wilcox
2020-11-02 15:41     ` Matthew Wilcox
2020-11-02 15:41     ` Matthew Wilcox
2020-11-02 15:43     ` Bartosz Golaszewski
2020-11-02 15:43       ` Bartosz Golaszewski
2020-11-02 15:43       ` Bartosz Golaszewski
2020-11-02 15:20 ` Bartosz Golaszewski [this message]
2020-11-02 15:20   ` [PATCH v2 2/8] ALSA: pcm: use krealloc_array() Bartosz Golaszewski
2020-11-02 15:20   ` Bartosz Golaszewski
2020-11-02 15:20 ` [PATCH v2 3/8] vhost: vringh: " Bartosz Golaszewski
2020-11-02 15:20   ` Bartosz Golaszewski
2020-11-02 15:20   ` Bartosz Golaszewski
2020-11-02 15:20 ` [PATCH v2 4/8] pinctrl: " Bartosz Golaszewski
2020-11-02 15:20   ` Bartosz Golaszewski
2020-11-02 15:20   ` Bartosz Golaszewski
2020-11-02 15:20 ` [PATCH v2 5/8] edac: ghes: " Bartosz Golaszewski
2020-11-02 15:20   ` Bartosz Golaszewski
2020-11-02 15:20   ` Bartosz Golaszewski
2020-11-02 15:20 ` [PATCH v2 6/8] drm: atomic: " Bartosz Golaszewski
2020-11-02 15:20   ` Bartosz Golaszewski
2020-11-02 15:20   ` Bartosz Golaszewski
2020-11-02 15:20 ` [PATCH v2 7/8] hwtracing: intel: " Bartosz Golaszewski
2020-11-02 15:20   ` Bartosz Golaszewski
2020-11-02 15:20   ` Bartosz Golaszewski
2020-11-02 15:20 ` [PATCH v2 8/8] dma-buf: " Bartosz Golaszewski
2020-11-02 15:20   ` Bartosz Golaszewski
2020-11-02 15:20   ` Bartosz Golaszewski
2020-11-02 16:10   ` Andy Shevchenko
2020-11-02 16:10     ` Andy Shevchenko
2020-11-02 16:10     ` Andy Shevchenko
2020-11-02 16:10     ` Andy Shevchenko
2020-11-03  4:14 ` [PATCH v2 0/8] slab: provide and " Joe Perches
2020-11-03  4:14   ` Joe Perches
2020-11-03  4:14   ` Joe Perches
2020-11-03  4:14   ` Joe Perches
2020-11-03 10:12   ` Bartosz Golaszewski
2020-11-03 10:12     ` Bartosz Golaszewski
2020-11-03 10:12     ` Bartosz Golaszewski
2020-11-03 10:55     ` Andy Shevchenko
2020-11-03 10:55       ` Andy Shevchenko
2020-11-03 10:55       ` Andy Shevchenko
2020-11-03 10:55       ` Andy Shevchenko

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