Re: [PATCH] kfree cleanups (remove redundant NULL checks) indrivers/telephony/ (actually ixj.c only)

[Andrew Morton]

This patch adds behavioural changes:

-		if (j->read_buffer) {
-			kfree(j->read_buffer);
-			j->read_buffer = NULL;
-			j->read_buffer_size = 0;
-		}
+		j->read_buffer = NULL;
+		j->read_buffer_size = 0;

Now we'll zero ->read_buffer_size even if ->read_buffer was already NULL.

It's hard to believe that this could cause any problems, but please check
that.

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