From: Jiri Slaby <jirislaby@gmail.com>
To: akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, Jiri Slaby <jirislaby@gmail.com>
Subject: [PATCH 1/1] floppy: fix lock imbalance
Date: Fri, 19 Jun 2009 17:51:39 +0200 [thread overview]
Message-ID: <1245426699-4386-1-git-send-email-jirislaby@gmail.com> (raw)
A crappy macro prevents us unlocking on a fail path.
Expand the macro and unlock appropriatelly.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
---
drivers/block/floppy.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 862b40c..91b7530 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3327,7 +3327,10 @@ static inline int set_geometry(unsigned int cmd, struct floppy_struct *g,
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
mutex_lock(&open_lock);
- LOCK_FDC(drive, 1);
+ if (lock_fdc(drive, 1)) {
+ mutex_unlock(&open_lock);
+ return -EINTR;
+ }
floppy_type[type] = *g;
floppy_type[type].name = "user format";
for (cnt = type << 2; cnt < (type << 2) + 4; cnt++)
--
1.6.3.2
reply other threads:[~2009-06-19 15:51 UTC|newest]
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