atm: lanai: set error code when ioremap fails

In function lanai_dev_open(), when the call to ioremap() fails, the value of return variable result is 0. 0 means no error in this context. This patch fixes the bug, assigning "-ENOMEM" to result when ioremap() returns a NULL pointer. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188791 Signed-off-by: Pan Bian <[email protected]> Signed-off-by: David S. Miller <[email protected]>
ambv · Dec 5, 2016 · 4606c9e · 4606c9e
1 parent 5192083
commit 4606c9e
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c
@@ -2143,6 +2143,7 @@ static int lanai_dev_open(struct atm_dev *atmdev)
 	lanai->base = (bus_addr_t) ioremap(raw_base, LANAI_MAPPING_SIZE);
 	if (lanai->base == NULL) {
 		printk(KERN_ERR DEV_LABEL ": couldn't remap I/O space\n");
+		result = -ENOMEM;
 		goto error_pci;
 	}
 	/* 3.3: Reset lanai and PHY */