diff options
| author | Li Zetao <lizetao1@huawei.com> | 2023-08-17 09:47:36 +0800 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2023-08-21 09:55:11 +0200 |
| commit | 035a69586f329e3e73750299695401e0c2b76ee2 (patch) | |
| tree | f0e0eeb5cb5e47fa058727addbda3392a7aa700a /drivers/xen | |
| parent | 71281ec9c82608c42d6841a75ced97aecd4274be (diff) | |
xen: xenbus: Use helper function IS_ERR_OR_NULL()
Use IS_ERR_OR_NULL() to detect an error pointer or a null pointer
open-coding to simplify the code.
Signed-off-by: Li Zetao <lizetao1@huawei.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20230817014736.3094289-1-lizetao1@huawei.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe_frontend.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c index 3f3836cb7279..fcb335bb7b18 100644 --- a/drivers/xen/xenbus/xenbus_probe_frontend.c +++ b/drivers/xen/xenbus/xenbus_probe_frontend.c @@ -429,7 +429,7 @@ static void xenbus_check_frontend(char *class, char *dev) printk(KERN_DEBUG "XENBUS: frontend %s %s\n", frontend, xenbus_strstate(fe_state)); backend = xenbus_read(XBT_NIL, frontend, "backend", NULL); - if (!backend || IS_ERR(backend)) + if (IS_ERR_OR_NULL(backend)) goto out; err = xenbus_scanf(XBT_NIL, backend, "state", "%i", &be_state); if (err == 1) |