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| author | Kunwu Chan <chentao@kylinos.cn> | 2023-11-22 04:06:51 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-11-27 12:01:15 +0100 |
| commit | 45b1ba7e5d1f6881050d558baf9bc74a2ae13930 (patch) | |
| tree | e72b8e446c86aa24cad6cdc60636221b887b41a5 /arch/powerpc/sysdev/xics/icp-native.c | |
| parent | powerpc: add crtsavres.o to always-y instead of extra-y (diff) | |
| download | linux-45b1ba7e5d1f6881050d558baf9bc74a2ae13930.tar.xz linux-45b1ba7e5d1f6881050d558baf9bc74a2ae13930.zip | |
powerpc/xics: Check return value of kasprintf in icp_native_map_one_cpu
kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure. Ensure the allocation was successful
by checking the pointer validity.
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231122030651.3818-1-chentao@kylinos.cn
Diffstat (limited to 'arch/powerpc/sysdev/xics/icp-native.c')
| -rw-r--r-- | arch/powerpc/sysdev/xics/icp-native.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/xics/icp-native.c b/arch/powerpc/sysdev/xics/icp-native.c index f6ec6dba92dc..700b67476a7d 100644 --- a/arch/powerpc/sysdev/xics/icp-native.c +++ b/arch/powerpc/sysdev/xics/icp-native.c @@ -236,6 +236,8 @@ static int __init icp_native_map_one_cpu(int hw_id, unsigned long addr, rname = kasprintf(GFP_KERNEL, "CPU %d [0x%x] Interrupt Presentation", cpu, hw_id); + if (!rname) + return -ENOMEM; if (!request_mem_region(addr, size, rname)) { pr_warn("icp_native: Could not reserve ICP MMIO for CPU %d, interrupt server #0x%x\n", cpu, hw_id); |