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scsi: megaraid: Fix error check return value of register_chrdev()

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If major equals 0, register_chrdev() returns an error code when it fails.
This function dynamically allocates a major and returns its number on
success, so we should use "< 0" to check it instead of "!".

Link: https://lore.kernel.org/r/20220418105755.2558828-1-lv.ruyi@zte.com.cn
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Lv Ruyi 2022-04-18 10:57:55 +00:00 committed by Martin K. Petersen
parent 1497e95e22
commit c5acd61dbb
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/megaraid.c
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@ -4607,7 +4607,7 @@ static int __init megaraid_init(void)
* major number allocation.
*/
major = register_chrdev(0, "megadev_legacy", &megadev_fops);
if (!major) {
if (major < 0) {
printk(KERN_WARNING
"megaraid: failed to register char device\n");
}