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| author | Joe Hershberger <joe.hershberger@ni.com> | 2012-10-03 09:38:50 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2012-10-15 11:54:05 -0700 |
| commit | 586197dfe42ffda777205b02fe404107eb7d974a (patch) | |
| tree | f7f06afcf49dac5dec0f5d33e4be48d3ab8e768a /common/cmd_nvedit.c | |
| parent | e4a223f04de2e271682f26d7b981c0012f6a459f (diff) | |
env: Check for NULL pointer in envmatch()
If the pointer passed into envmatch() is NULL, return -1 instead of
crashing.
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'common/cmd_nvedit.c')
| -rw-r--r-- | common/cmd_nvedit.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c index d655ab9684e..1f9c6742602 100644 --- a/common/cmd_nvedit.c +++ b/common/cmd_nvedit.c @@ -650,6 +650,9 @@ U_BOOT_CMD( */ int envmatch(uchar *s1, int i2) { + if (s1 == NULL) + return -1; + while (*s1 == env_get_char(i2++)) if (*s1++ == '=') return i2; |