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mdev: call index_in_strings on $ACTION only after we checked it for NULL

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2013-04-02 14:37:06 +02:00
parent 2df1c64f38
commit d35cbad0ef
1 changed files with 3 additions and 3 deletions
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6
util-linux/mdev.c
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@ -1060,15 +1060,15 @@ int mdev_main(int argc UNUSED_PARAM, char **argv)
* ACTION can be "add", "remove", "change"
* DEVPATH is like "/block/sda" or "/class/input/mice"
*/
action = getenv("ACTION");
op = index_in_strings(keywords, action);
env_devname = getenv("DEVNAME"); /* can be NULL */
env_devpath = getenv("DEVPATH");
G.subsystem = getenv("SUBSYSTEM");
action = getenv("ACTION");
env_devpath = getenv("DEVPATH");
if (!action || !env_devpath /*|| !G.subsystem*/)
bb_show_usage();
fw = getenv("FIRMWARE");
seq = getenv("SEQNUM");
op = index_in_strings(keywords, action);
my_pid = getpid();
open_mdev_log(seq, my_pid);