From: Ajit Pandey <aj...@codeaurora.org>

soc_find_component() may lead to null pointer exception if both
arguments i.e of_node and name is NULL. Add NULL check before
calling soc_find_component(). Also fix some typos.

Fixes: 8780cf1142a5 ("ASoC: soc-core: defer card probe until all component is 
added to list")
Reported-by: Pierre-Louis Bossart <pierre-louis.boss...@linux.intel.com>
Signed-off-by: Ajit Pandey <aj...@codeaurora.org>
Signed-off-by: Rohit kumar <rohi...@codeaurora.org>
---
 sound/soc/soc-core.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 0934b36..df05fb8 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1131,11 +1131,13 @@ static int soc_init_dai_link(struct snd_soc_card *card,
        }
 
        /*
-        * Defer card registartion if platform dai component is not added to
+        * Defer card registration if platform dai component is not added to
         * component list.
         */
-       if (!soc_find_component(link->platform->of_node, link->platform->name))
-               return -EPROBE_DEFER;
+       if (link->platform->of_node || link->platform->name)
+               if (!soc_find_component(link->platform->of_node,
+                                       link->platform->name))
+                       return -EPROBE_DEFER;
 
        /*
         * CPU device may be specified by either name or OF node, but
@@ -1150,11 +1152,12 @@ static int soc_init_dai_link(struct snd_soc_card *card,
        }
 
        /*
-        * Defer card registartion if cpu dai component is not added to
+        * Defer card registration if cpu dai component is not added to
         * component list.
         */
-       if (!soc_find_component(link->cpu_of_node, link->cpu_name))
-               return -EPROBE_DEFER;
+       if (link->cpu_of_node || link->cpu_name)
+               if (!soc_find_component(link->cpu_of_node, link->cpu_name))
+                       return -EPROBE_DEFER;
 
        /*
         * At least one of CPU DAI name or CPU device name/node must be
-- 
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is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.

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