diff options
| author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2019-01-22 23:18:42 +0300 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2020-03-04 23:46:11 +0300 |
| commit | 792a402c2840054533ef56279c212ef6da87d811 (patch) | |
| tree | a8706dac3da5bbdef7445bd5c0e1866cfb7b0c6d | |
| parent | 172a37e9d011510aee37f62cc5ac4e53e49d17bb (diff) | |
| download | linux-792a402c2840054533ef56279c212ef6da87d811.tar.xz | |
MIPS: OCTEON: irq: Fix potential NULL pointer dereference
There is a potential NULL pointer dereference in case kzalloc()
fails and returns NULL.
Fix this by adding a NULL check on *cd*
This bug was detected with the help of Coccinelle.
Fixes: 64b139f97c01 ("MIPS: OCTEON: irq: add CIB and other fixes")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| -rw-r--r-- | arch/mips/cavium-octeon/octeon-irq.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c index 6bd1e97effdf..6501a842c41a 100644 --- a/arch/mips/cavium-octeon/octeon-irq.c +++ b/arch/mips/cavium-octeon/octeon-irq.c @@ -2199,6 +2199,9 @@ static int octeon_irq_cib_map(struct irq_domain *d, } cd = kzalloc(sizeof(*cd), GFP_KERNEL); + if (!cd) + return -ENOMEM; + cd->host_data = host_data; cd->bit = hw; |