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| author | William Dean <williamsukatube@163.com> | 2022-07-23 13:01:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-21 16:15:29 +0300 |
| commit | 2b8c55900d46369b7d280b669aad83dfa9e0ae7a (patch) | |
| tree | 9288ed97a04ba3c9a08a2385e9f1e2eec7936f86 /drivers/irqchip | |
| parent | 8dfb4a99b1c8aef00bda42a8a9b88fe96b4fcc60 (diff) | |
| download | linux-2b8c55900d46369b7d280b669aad83dfa9e0ae7a.tar.xz | |
irqchip/mips-gic: Check the return value of ioremap() in gic_of_init()
[ Upstream commit 71349cc85e5930dce78ed87084dee098eba24b59 ]
The function ioremap() in gic_of_init() can fail, so
its return value should be checked.
Reported-by: Hacash Robot <hacashRobot@santino.com>
Signed-off-by: William Dean <williamsukatube@163.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220723100128.2964304-1-williamsukatube@163.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-mips-gic.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c index 8b08b31ea2ba..8ada91bdbe4d 100644 --- a/drivers/irqchip/irq-mips-gic.c +++ b/drivers/irqchip/irq-mips-gic.c @@ -766,6 +766,10 @@ static int __init gic_of_init(struct device_node *node, } mips_gic_base = ioremap(gic_base, gic_len); + if (!mips_gic_base) { + pr_err("Failed to ioremap gic_base\n"); + return -ENOMEM; + } gicconfig = read_gic_config(); gic_shared_intrs = gicconfig & GIC_CONFIG_NUMINTERRUPTS; |