#include #include #include #ifndef __NR_bpf # if defined(__i386__) # define __NR_bpf 357 # elif defined(__x86_64__) # define __NR_bpf 321 # elif defined(__aarch64__) # define __NR_bpf 280 # error __NR_bpf not defined. libbpf does not support your arch. # endif #endif int main(void) { union bpf_attr attr; /* Check fields in attr */ attr.prog_type = BPF_PROG_TYPE_KPROBE; attr.insn_cnt = 0; attr.insns = 0; attr.license = 0; attr.log_buf = 0; attr.log_size = 0; attr.log_level = 0; attr.kern_version = 0; /* * Test existence of __NR_bpf and BPF_PROG_LOAD. * This call should fail if we run the testcase. */ return syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr)); } ng' alt='cgit logo'/> index : net-next.git
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authorJisheng Zhang <jszhang@marvell.com>2016-11-10 17:21:29 +0800
committerMark Brown <broonie@kernel.org>2016-11-11 15:38:08 +0000
commit09f2ba0b0b7c44ecea49cf69a708203b76ba5535 (patch)
tree042df33ac99f77d8b86ac427431e267c33561c35 /net/xfrm/Makefile
parent1001354ca34179f3db924eb66672442a173147dc (diff)
regulator: gpio: properly check return value of of_get_named_gpio
The function of_get_named_gpio() could return -ENOENT, -EPROBE_DEFER -EINVAL and so on. Currently, for the optional property "enable-gpio", we only check -EPROBE_DEFER, this is not enough since there may be misconfigured "enable-gpio" in the DTB, of_get_named_gpio() will return -EINVAL in this case, we should return immediately here. And for the optional property "gpios", we didn't check the return value, the driver will continue to the point where gpio_request_array() is called, it doesn't make sense to continue if we got -EPROBE_DEFER or -EINVAL here. This patch tries to address these two issues by properly checking the return value of of_get_named_gpio. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'net/xfrm/Makefile')