From: Gustavo A. R. Silva gustavo@embeddedor.com
commit 792a402c2840054533ef56279c212ef6da87d811 upstream.
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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/mips/cavium-octeon/octeon-irq.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/arch/mips/cavium-octeon/octeon-irq.c +++ b/arch/mips/cavium-octeon/octeon-irq.c @@ -2168,6 +2168,9 @@ static int octeon_irq_cib_map(struct irq }
cd = kzalloc(sizeof(*cd), GFP_KERNEL); + if (!cd) + return -ENOMEM; + cd->host_data = host_data; cd->bit = hw;