HiSax: fix error checking for hisax_register()]
This patch (as875) adds error-checking to the callers of hisax_register(). It also changes an error pathway in that routine, making it return an error code rather than 0. This fixes Bugzilla #7960. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Acked-by: NKarsten Keil <kkeil@suse.de> Cc: Martin Bachem <info@colognechip.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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