media: r820t: don't crash if attach fails
As pointed by smatch: drivers/media/tuners/r820t.c:2374 r820t_attach() error: potential null dereference 'priv'. (kzalloc returns null) The current function with prints error assumes that the attach succeeds. So, don't use it in case of failures. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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@ -20,6 +20,8 @@
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//
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// RF Gain set/get is not implemented.
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/videodev2.h>
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#include <linux/mutex.h>
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#include <linux/slab.h>
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@ -2371,7 +2373,7 @@ err:
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err_no_gate:
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mutex_unlock(&r820t_list_mutex);
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tuner_info("%s: failed=%d\n", __func__, rc);
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pr_info("%s: failed=%d\n", __func__, rc);
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r820t_release(fe);
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return NULL;
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}
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