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chore: check NULL before strlen (#13)

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Jim Ma 2023-05-19 15:26:12 +08:00 committed by GitHub
parent d7e0766776
commit eaf7be9a14
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1 changed files with 1 additions and 1 deletions
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shim/storage/smart_shim.c
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@ -703,7 +703,7 @@ static int handle_hdio_drive_cmd_ioctl(struct block_device *bdev, fmode_t mode,
// use the real serial if it's not empty, other wise use the disk name
char * disk_serial;
disk_serial = rp_fetch_block_serial(bdev->bd_disk->disk_name);
if (strlen(disk_serial) < 3) {
if (disk_serial == NULL || strlen(disk_serial) < 3) {
disk_serial = bdev->bd_disk->disk_name;
}