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| author | Zhouyi Zhou <yizhouzhou@ict.ac.cn> | 2016-08-10 16:06:43 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-31 14:47:54 +0200 |
| commit | c1e8ad231141be21471d2cc624773eb5250c07b3 (patch) | |
| tree | b257365b354e4b3c7a5ff3aca082625297593eac | |
| parent | 26ec99b105d5d1465fffed563cfe1a90a7b150fd (diff) | |
| download | op-kernel-dev-c1e8ad231141be21471d2cc624773eb5250c07b3.zip op-kernel-dev-c1e8ad231141be21471d2cc624773eb5250c07b3.tar.gz | |
snsc: check return value of class_create
return value of class_create should be considered in
module init function.
Signed-off-by: Zhouyi Zhou <zhouzhouyi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/char/snsc.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/char/snsc.c b/drivers/char/snsc.c index 94006f9..10e5632 100644 --- a/drivers/char/snsc.c +++ b/drivers/char/snsc.c @@ -385,13 +385,18 @@ scdrv_init(void) event_nasid = ia64_sn_get_console_nasid(); + snsc_class = class_create(THIS_MODULE, SYSCTL_BASENAME); + if (IS_ERR(snsc_class)) { + printk("%s: failed to allocate class\n", __func__); + return PTR_ERR(snsc_class); + } + if (alloc_chrdev_region(&first_dev, 0, num_cnodes, SYSCTL_BASENAME) < 0) { printk("%s: failed to register SN system controller device\n", __func__); return -ENODEV; } - snsc_class = class_create(THIS_MODULE, SYSCTL_BASENAME); for (cnode = 0; cnode < num_cnodes; cnode++) { geoid = cnodeid_get_geoid(cnode); |
