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5e9571750c
The find_substream() call may return NULL, but the error path dereferenced 'subs' unconditionally via dev_err(&subs->dev->dev, ...), causing a NULL pointer dereference when subs is NULL. Fix by switching to &uadev[idx].udev->dev which is always valid in this context. Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn> Link: https://patch.msgid.link/86ac2939273ac853535049e60391c09d7688714e.1750755508.git.xiaopei01@kylinos.cn Signed-off-by: Takashi Iwai <tiwai@suse.de>