From 6a7f10c795743a7f81e89df99866d7532811c324 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Fri, 21 Feb 2020 23:11:43 +0000 Subject: soc: fsl: dpio: fix dereference of pointer p before null check Pointer p is currently being dereferenced before it is null checked on a memory allocation failure check. Fix this by checking if p is null before dereferencing it. Addresses-Coverity: ("Dereference before null check") Fixes: 3b2abda7d28c ("soc: fsl: dpio: Replace QMAN array mode with ring mode enqueue") Signed-off-by: Colin Ian King Signed-off-by: Li Yang --- drivers/soc/fsl/dpio/qbman-portal.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/soc') diff --git a/drivers/soc/fsl/dpio/qbman-portal.c b/drivers/soc/fsl/dpio/qbman-portal.c index 740ee0d19582..d1f49caa5b13 100644 --- a/drivers/soc/fsl/dpio/qbman-portal.c +++ b/drivers/soc/fsl/dpio/qbman-portal.c @@ -249,10 +249,11 @@ struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d) u32 mask_size; u32 eqcr_pi; - spin_lock_init(&p->access_spinlock); - if (!p) return NULL; + + spin_lock_init(&p->access_spinlock); + p->desc = d; p->mc.valid_bit = QB_VALID_BIT; p->sdq = 0; -- cgit v1.2.3