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ucm: add NULL check for card_name in open

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Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2022-07-08 22:00:34 +02:00
parent fc86eafa08
commit d80616c0c1
1 changed files with 1 additions and 1 deletions
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2
src/ucm/main.c
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@ -1518,7 +1518,7 @@ int snd_use_case_mgr_open(snd_use_case_mgr_t **uc_mgr,
mgr->suppress_nodev_errors = 1;
}
if (card_name[0] == '<' && card_name[1] == '<' && card_name[2] == '<')
if (card_name && card_name[0] == '<' && card_name[1] == '<' && card_name[2] == '<')
card_name = parse_open_variables(mgr, card_name);
err = uc_mgr_card_open(mgr);