From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Yufen Yu <yuyufen@huawei.com>, Jens Axboe <axboe@kernel.dk>,
Sasha Levin <sashal@kernel.org>,
linux-block@vger.kernel.org
Subject: [PATCH AUTOSEL 4.14 18/27] floppy: check_events callback should not return a negative number
Date: Mon, 11 Mar 2019 15:58:15 -0400 [thread overview]
Message-ID: <20190311195824.139043-18-sashal@kernel.org> (raw)
In-Reply-To: <20190311195824.139043-1-sashal@kernel.org>
From: Yufen Yu <yuyufen@huawei.com>
[ Upstream commit 96d7cb932e826219ec41ac02e5af037ffae6098c ]
floppy_check_events() is supposed to return bit flags to say which
events occured. We should return zero to say that no event flags are
set. Only BIT(0) and BIT(1) are used in the caller. And .check_events
interface also expect to return an unsigned int value.
However, after commit a0c80efe5956, it may return -EINTR (-4u).
Here, both BIT(0) and BIT(1) are cleared. So this patch shouldn't
affect runtime, but it obviously is still worth fixing.
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: a0c80efe5956 ("floppy: fix lock_fdc() signal handling")
Signed-off-by: Yufen Yu <yuyufen@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/block/floppy.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index a7f212ea17bf..3ea9c3e9acb3 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4079,7 +4079,7 @@ static unsigned int floppy_check_events(struct gendisk *disk,
if (time_after(jiffies, UDRS->last_checked + UDP->checkfreq)) {
if (lock_fdc(drive))
- return -EINTR;
+ return 0;
poll_drive(false, 0);
process_fd_request();
}
--
2.19.1
next prev parent reply other threads:[~2019-03-11 19:59 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-11 19:57 [PATCH AUTOSEL 4.14 01/27] drm/imx: ignore plane updates on disabled crtcs Sasha Levin
2019-03-11 19:57 ` [PATCH AUTOSEL 4.14 02/27] gpu: ipu-v3: Fix i.MX51 CSI control registers offset Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 03/27] drm/imx: imx-ldb: add missing of_node_puts Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 04/27] gpu: ipu-v3: Fix CSI offsets for imx53 Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 05/27] s390/dasd: fix using offset into zero size array error Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 06/27] Input: pwm-vibra - prevent unbalanced regulator Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 07/27] Input: pwm-vibra - stop regulator after disabling pwm, not before Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 08/27] ARM: OMAP2+: Variable "reg" in function omap4_dsi_mux_pads() could be uninitialized Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 09/27] ASoC: dapm: fix out-of-bounds accesses to DAPM lookup tables Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 10/27] ASoC: rsnd: fixup rsnd_ssi_master_clk_start() user count check Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 11/27] KVM: arm/arm64: Reset the VCPU without preemption and vcpu state loaded Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 12/27] ARM: OMAP2+: fix lack of timer interrupts on CPU1 after hotplug Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 13/27] Input: cap11xx - switch to using set_brightness_blocking() Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 14/27] Input: ps2-gpio - flush TX work when closing port Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 15/27] Input: matrix_keypad - use flush_delayed_work() Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 16/27] mac80211: Fix Tx aggregation session tear down with ITXQs Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 17/27] ipvs: fix dependency on nf_defrag_ipv6 Sasha Levin
2019-03-11 19:58 ` Sasha Levin [this message]
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 19/27] NFS: Don't use page_file_mapping after removing the page Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 20/27] mm/gup: fix gup_pmd_range() for dax Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 21/27] Revert "mm: use early_pfn_to_nid in page_ext_init" Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 22/27] mm: page_alloc: fix ref bias in page_frag_alloc() for 1-byte allocs Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 23/27] net: hns: Fix object reference leaks in hns_dsaf_roce_reset() Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 24/27] i2c: cadence: Fix the hold bit setting Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 25/27] i2c: bcm2835: Clear current buffer pointers and counts after a transfer Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 26/27] auxdisplay: ht16k33: fix potential user-after-free on module unload Sasha Levin
2019-03-11 19:58 ` [PATCH AUTOSEL 4.14 27/27] Input: st-keyscan - fix potential zalloc NULL dereference Sasha Levin
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