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我做一些学习与C,和我有麻烦识别内存泄漏情况Cppcheck:(错误)资源泄漏
当我检查与cppcheck代码:得到(错误)资源泄漏:F
enum bus_type {
MEDIA_BUS_UNKNOWN,
MEDIA_BUS_VIRTUAL,
MEDIA_BUS_PCI,
MEDIA_BUS_USB,
};
static enum bus_type get_bus(char *device)
{
char file[PATH_MAX];
char s[1024];
FILE *f;
if (!strcmp(device, "/sys/devices/virtual"))
return MEDIA_BUS_VIRTUAL;
snprintf(file, PATH_MAX, "%s/modalias", device);
f = fopen(file, "r");
if (!f)
return MEDIA_BUS_UNKNOWN;
if (!fgets(s, sizeof(s), f)) /* <-- (error) Resource leak: f */
return MEDIA_BUS_UNKNOWN;
fclose(f);
if (!strncmp(s, "pci", 3))
return MEDIA_BUS_PCI;
if (!strncmp(s, "usb", 3))
return MEDIA_BUS_USB;
return MEDIA_BUS_UNKNOWN;
}
我觉得我错过了一些内存管理。
您应该在第二种情况下返回'MEDIA_BUS_UNKNOWN'之前关闭'f'。 – sapi