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driver: net: fsl-mc: Check NULL before pointer dereference

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NULL pointer should be checked before any dereference.  This patch
move memest after the NULL pointer check.

Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reported-by: Jose Rivera <german.rivera@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Prabhakar Kushwaha 2016-03-18 16:16:03 +05:30 • committed by York Sun
parent cd7b3fbcf4
commit b576d325ac
1 changed files with 1 additions and 1 deletions
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2
drivers/net/fsl-mc/dpio/qbman_sys.h
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@ -255,11 +255,11 @@ static inline int qbman_swp_sys_init(struct qbman_swp_sys *s,
s->addr_cena = d->cena_bar;
s->addr_cinh = d->cinh_bar;
s->cena = (void *)valloc(CONFIG_SYS_PAGE_SIZE);
memset((void *)s->cena, 0x00, CONFIG_SYS_PAGE_SIZE);
if (!s->cena) {
printf("Could not allocate page for cena shadow\n");
return -1;
}
memset((void *)s->cena, 0x00, CONFIG_SYS_PAGE_SIZE);
#ifdef QBMAN_CHECKING
/* We should never be asked to initialise for a portal that isn't in