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sparc64: vcc: Check for IS_ERR() instead of NULL

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The tty_alloc_driver() function never returns NULL, it returns error
pointers on error.

Fixes: ce808b7463 ("sparc64: vcc: TTY driver initialization and cleanup")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dan Carpenter 2017-08-26 09:12:05 +03:00 committed by David S. Miller
parent cc324d1a3e
commit c6b4ee9eba
1 changed files with 2 additions and 2 deletions
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4
drivers/tty/vcc.c
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@ -1086,9 +1086,9 @@ static int vcc_tty_init(void)
pr_info("VCC: %s\n", version);
vcc_tty_driver = tty_alloc_driver(VCC_MAX_PORTS, VCC_TTY_FLAGS);
if (!vcc_tty_driver) {
if (IS_ERR(vcc_tty_driver)) {
pr_err("VCC: TTY driver alloc failed\n");
return -ENOMEM;
return PTR_ERR(vcc_tty_driver);
}
vcc_tty_driver->driver_name = vcc_driver_name;