ALSA: hda: Fix missing pointer check in hda_component_manager_init function

The __component_match_add function may assign the 'matchptr' pointer
the value ERR_PTR(-ENOMEM), which will subsequently be dereferenced.

The call stack leading to the error looks like this:

hda_component_manager_init
|-> component_match_add
|-> component_match_add_release
|-> __component_match_add ( ... ,**matchptr, ... )
|-> *matchptr = ERR_PTR(-ENOMEM); // assign
|-> component_master_add_with_match( ... match)
|-> component_match_realloc(match, match->num); // dereference

Add IS_ERR() check to prevent the crash.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: ae7abe36e352 ("ALSA: hda/realtek: Add CS35L41 support for Thinkpad laptops")
Cc: [e-mail]
Signed-off-by: Denis Arefev <[e-mail]>
Signed-off-by: Takashi Iwai <[e-mail]>

sound/hda/codecs/side-codecs/hda_component.c

···
 		sm->match_str = match_str;
 		sm->index = i;
 		component_match_add(dev, &match, hda_comp_match_dev_name, sm);
+		if (IS_ERR(match)) {
+			codec_err(cdc, "Fail to add component %ld\n", PTR_ERR(match));
+			return PTR_ERR(match);
+		}
 	}
 
 	ret = component_master_add_with_match(dev, ops, match);