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argv_split: allow argv_split to handle NULL pointer in argcp parameter gracefully

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It would be nice if the argv_split library function could gracefully handle
a NULL pointer in the argcp parameter, so as to allow functions using it
that did not care about the value of argc to not have to declare a useless
variable.  This patch accomplishes that.  Tested by me, with successful
results.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Satyam Sharma <satyam@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Neil Horman 2007-10-16 23:26:33 -07:00 committed by Linus Torvalds
parent 2a9807c0d3
commit 8e2b705649
1 changed files with 3 additions and 1 deletions
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4
lib/argv_split.c
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@ -75,7 +75,9 @@ char **argv_split(gfp_t gfp, const char *str, int *argcp)
if (argv == NULL)
goto out;
*argcp = argc;
if (argcp)
*argcp = argc;
argvp = argv;
while (*str) {