printk: fix bounds checking for log_prefix
authorWilliam Douglas <william.r.douglas@gmail.com>
Tue, 1 Nov 2011 00:11:29 +0000 (17:11 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 1 Nov 2011 00:30:53 +0000 (17:30 -0700)
commit48e41899e4a3592746e5263c14681bf5c1393563
tree8d575fa52f27f63353fb0f3179b77c9e2172a69b
parent134620f7a865b3bc9e3d56d460603592b70ede21
printk: fix bounds checking for log_prefix

Currently log_prefix is testing that the first character of the log level
and facility is less than '0' and greater than '9' (which is always
false).  It should be testing to see if the character less than '0' or
greater than '9' instead.  This patch makes that change.

The code being changed worked because strtoul bombs out (endp isn't
updated) and 0 is returned anyway.

Signed-off-by: William Douglas <william.douglas@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel/printk.c