diff options
| author | Julia Lawall <julia@diku.dk> | 2010-10-15 17:00:09 +0400 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2010-10-19 21:32:40 +0400 |
| commit | 6cc0cc4a35337b48e09c82c5f3fb83534884fca8 (patch) | |
| tree | 67ea9e34e23f102bb67730bf7a690981831f5756 /drivers/serial/ioc3_serial.c | |
| parent | 08be7b2bc7393d5cf4beb00aecb5eb9e5cde5f85 (diff) | |
| download | linux-6cc0cc4a35337b48e09c82c5f3fb83534884fca8.tar.xz | |
SERIAL: ioc3_serial: Return -ENOMEM on memory allocation failure
In this code, 0 is returned on memory allocation failure, even though other
failures return -ENOMEM or other similar values.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression ret;
expression x,e1,e2,e3;
@@
ret = 0
... when != ret = e1
*x = \(kmalloc\|kcalloc\|kzalloc\)(...)
... when != ret = e2
if (x == NULL) { ... when != ret = e3
return ret;
}
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
To: Pat Gefre <pfg@sgi.com>
Cc: kernel-janitors@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1704/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'drivers/serial/ioc3_serial.c')
| -rw-r--r-- | drivers/serial/ioc3_serial.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/serial/ioc3_serial.c b/drivers/serial/ioc3_serial.c index 93de907b1208..800c54602339 100644 --- a/drivers/serial/ioc3_serial.c +++ b/drivers/serial/ioc3_serial.c @@ -2044,6 +2044,7 @@ ioc3uart_probe(struct ioc3_submodule *is, struct ioc3_driver_data *idd) if (!port) { printk(KERN_WARNING "IOC3 serial memory not available for port\n"); + ret = -ENOMEM; goto out4; } spin_lock_init(&port->ip_lock); |