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kexec: fix omitting offset in extended crashkernel syntax

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Setting
 "crashkernel=512M-2G:64M,2G-:128M"
does not work but it turns to work if it has a trailing-whitespace,
like
 "crashkernel=512M-2G:64M,2G-:128M ".

It was because of a bug in the parser, running over the cmdline.

This patch adds a check of the termination.

Reported-by: Jin Dongming <jin.dongming@np.css.fujitsu.com>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Tested-by: Jin Dongming <jin.dongming@np.css.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Hidetoshi Seto 2009-07-29 15:02:08 -07:00 committed by Linus Torvalds
parent 933b787b57
commit 11c7da4b0c
1 changed files with 1 additions and 1 deletions
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2
kernel/kexec.c
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@ -1228,7 +1228,7 @@ static int __init parse_crashkernel_mem(char *cmdline,
} while (*cur++ == ',');
if (*crash_size > 0) {
while (*cur != ' ' && *cur != '@')
while (*cur && *cur != ' ' && *cur != '@')
cur++;
if (*cur == '@') {
cur++;