[PATCH] imsm: fix: does not allow to use invalid chunk size

[Przemyslaw Czarnowski <przemyslaw.hawrylewicz.czarnowski@intel.com>]

Only least significant bit of chunk size provided by user has been used
in test with OROM capabilities. This way user could pass value which is
not a power of 2.

Signed-off-by: Przemyslaw Czarnowski <przemyslaw.hawrylewicz.czarnowski@intel.com>
---
 platform-intel.h |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/platform-intel.h b/platform-intel.h
index 6c094d7..99450ba 100644
--- a/platform-intel.h
+++ b/platform-intel.h
@@ -124,11 +124,13 @@ static inline int imsm_orom_has_raid5(const struct imsm_orom *orom)
 static inline int imsm_orom_has_chunk(const struct imsm_orom *orom, int chunk)
 {
 	int fs = ffs(chunk);
+	int orom_chunk_bit;
 
 	if (!fs)
 		return 0;
 	fs--; /* bit num to bit index */
-	return !!(orom->sss & (1 << (fs - 1)));
+	orom_chunk_bit = (orom->sss & (1 << (fs - 1)));
+	return orom_chunk_bit && 1 << orom_chunk_bit == chunk;
 }