From: Todd Poynor <toddpoynor@gmail.com>
To: Rob Springer <rspringer@google.com>,
John Joseph <jnjoseph@google.com>,
Ben Chan <benchan@chromium.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Zhongze Hu <frankhu@chromium.org>, Simon Que <sque@chromium.org>,
Dmitry Torokhov <dtor@chromium.org>,
Guenter Roeck <groeck@chromium.org>,
devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org,
Todd Poynor <toddpoynor@google.com>
Subject: [PATCH 09/32] staging: gasket: convert gasket_mmap_has_permissions to bool return
Date: Tue, 17 Jul 2018 13:56:49 -0700 [thread overview]
Message-ID: <20180717205712.29495-10-toddpoynor@gmail.com> (raw)
In-Reply-To: <20180717205712.29495-1-toddpoynor@gmail.com>
From: Todd Poynor <toddpoynor@google.com>
gasket_mmap_has_permissions() should return a boolean value.
Signed-off-by: Zhongze Hu <frankhu@chromium.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
---
drivers/staging/gasket/gasket_core.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/staging/gasket/gasket_core.c b/drivers/staging/gasket/gasket_core.c
index 2ff328652356a..248d717e1df65 100644
--- a/drivers/staging/gasket/gasket_core.c
+++ b/drivers/staging/gasket/gasket_core.c
@@ -1241,19 +1241,19 @@ static int gasket_release(struct inode *inode, struct file *file)
* that the provided descriptor/range is of adequate size to hold the range to
* be mapped.
*/
-static int gasket_mmap_has_permissions(
+static bool gasket_mmap_has_permissions(
struct gasket_dev *gasket_dev, struct vm_area_struct *vma,
int bar_permissions)
{
int requested_permissions;
/* Always allow sysadmin to access. */
if (capable(CAP_SYS_ADMIN))
- return 1;
+ return true;
/* Never allow non-sysadmins to access to a dead device. */
if (gasket_dev->status != GASKET_STATUS_ALIVE) {
gasket_log_info(gasket_dev, "Device is dead.");
- return 0;
+ return false;
}
/* Make sure that no wrong flags are set. */
@@ -1265,7 +1265,7 @@ static int gasket_mmap_has_permissions(
"Attempting to map a region with requested permissions "
"0x%x, but region has permissions 0x%x.",
requested_permissions, bar_permissions);
- return 0;
+ return false;
}
/* Do not allow a non-owner to write. */
@@ -1275,10 +1275,10 @@ static int gasket_mmap_has_permissions(
gasket_dev,
"Attempting to mmap a region for write without owning "
"device.");
- return 0;
+ return false;
}
- return 1;
+ return true;
}
/*
--
2.18.0.203.gfac676dfb9-goog
next prev parent reply other threads:[~2018-07-17 21:05 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-17 20:56 [PATCH 00/32 v3] staging: gasket: sundry fixes and fixups Todd Poynor
2018-07-17 20:56 ` [PATCH 01/32] staging: gasket: remove X86 Kconfig restriction Todd Poynor
2018-07-17 20:56 ` [PATCH 02/32] staging: gasket: fix typo in apex_enter_reset Todd Poynor
2018-07-17 20:56 ` [PATCH 03/32] staging: gasket: fix typo in gasket_core.h comments Todd Poynor
2018-07-17 20:56 ` [PATCH 04/32] staging: gasket: whitespace fix in gasket_page_table_init Todd Poynor
2018-07-17 20:56 ` [PATCH 05/32] staging: gasket: remove driver registration on class creation failure Todd Poynor
2018-07-17 20:56 ` [PATCH 06/32] staging: gasket: hold mutex on gasket driver unregistration Todd Poynor
2018-07-17 20:56 ` [PATCH 07/32] staging: gasket: Return EBUSY on mapping create when already in use Todd Poynor
2018-07-17 20:56 ` [PATCH 08/32] staging: gasket: Remove stale pointers on error allocating attr array Todd Poynor
2018-07-17 20:56 ` Todd Poynor [this message]
2018-07-17 20:56 ` [PATCH 10/32] staging: gasket: fix gasket_wait_with_reschedule timeout return code Todd Poynor
2018-07-17 20:56 ` [PATCH 11/32] staging: gasket: gasket_wait_with_reschedule use msleep Todd Poynor
2018-07-17 20:56 ` [PATCH 12/32] staging: gasket: gasket_wait_with_reschedule simplify logic Todd Poynor
2018-07-17 20:56 ` [PATCH 13/32] staging: gasket: gasket_wait_with_reschedule use 32 bits of retry count Todd Poynor
2018-07-17 20:56 ` [PATCH 14/32] staging: gasket: bail out of reset sequence on device callback error Todd Poynor
2018-07-17 20:56 ` [PATCH 15/32] staging: gasket: drop gasket_cdev_get_info, use container_of Todd Poynor
2018-07-17 20:56 ` [PATCH 16/32] staging: gasket: always allow root open for write Todd Poynor
2018-07-19 9:29 ` Greg Kroah-Hartman
2018-07-19 23:47 ` Todd Poynor
2018-07-17 20:56 ` [PATCH 17/32] staging: gasket: annotate ioctl arg with __user Todd Poynor
2018-07-19 9:37 ` Greg Kroah-Hartman
2018-07-20 2:44 ` Todd Poynor
2018-07-20 5:43 ` Greg Kroah-Hartman
2018-07-30 7:00 ` Dan Carpenter
2018-07-17 20:56 ` [PATCH 18/32] staging: gasket: gasket_enable_dev remove unnecessary variable Todd Poynor
2018-07-17 20:56 ` [PATCH 19/32] staging: gasket: remove code for no physical device Todd Poynor
2018-07-17 20:57 ` [PATCH 20/32] staging: gasket: fix class create bug handling Todd Poynor
2018-07-17 20:57 ` [PATCH 21/32] staging: gasket: remove unnecessary code in coherent allocator Todd Poynor
2018-07-17 20:57 ` [PATCH 22/32] staging: gasket: don't treat no device reset callback as an error Todd Poynor
2018-07-17 20:57 ` [PATCH 23/32] staging: gasket: gasket_mmap return error instead of valid BAR index Todd Poynor
2018-07-17 20:57 ` [PATCH 24/32] staging: gasket: apex_clock_gating simplify logic, reduce indentation Todd Poynor
2018-07-17 20:57 ` [PATCH 25/32] staging: gasket: apex_ioctl_check_permissions use bool return type Todd Poynor
2018-07-17 20:57 ` [PATCH 26/32] staging: gasket: gasket page table functions " Todd Poynor
2018-07-17 20:57 ` [PATCH 27/32] staging: gasket: remove else clause after return in if clause Todd Poynor
2018-07-17 20:57 ` [PATCH 28/32] staging: gasket: fix comment syntax in apex.h Todd Poynor
2018-07-17 20:57 ` [PATCH 29/32] staging: gasket: remove unnecessary parens in page table code Todd Poynor
2018-07-17 20:57 ` [PATCH 30/32] staging: gasket: gasket_mmap use PAGE_MASK Todd Poynor
2018-07-17 20:57 ` [PATCH 31/32] staging: gasket: remove extra parens in gasket_write_mappable_regions Todd Poynor
2018-07-17 20:57 ` [PATCH 32/32] staging: gasket: fix multi-line comment syntax in gasket_core.h Todd Poynor
-- strict thread matches above, loose matches on Subject: below --
2018-07-17 2:08 [PATCH 00/32 v2] staging: gasket: sundry fixes and fixups Todd Poynor
2018-07-17 2:09 ` [PATCH 09/32] staging: gasket: convert gasket_mmap_has_permissions to bool return Todd Poynor
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