char: esp.c: fix possible double-unlock

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Hitting either of the break statements in the while loop would cause a
double-unlock of info->lock.

[Jiri Slaby suggested simply returning is safe here, rather than a goto]

Noticed by sparse:
drivers/char/esp.c:2042:2: warning: context imbalance in 'rs_wait_until_sent' - unexpected unlock

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

...

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Harvey Harrison 2008-04-30 00:53:50 -07:00 • committed by Linus Torvalds

parent f5592268a5

commit d3ceb6562b

1 changed files with 2 additions and 2 deletions

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drivers/char/esp.c

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