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Commit 2d2a2b8c authored by Lothar Waßmann's avatar Lothar Waßmann Committed by Boris Brezillon
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mtd: nand: complain loudly when chip->bits_per_cell is not correctly initialized 



chip->bits_per_cell which is used to determine the NAND cell type
(SLC/MLC) should always have a value != 0.
Complain loudly if the value is 0 in nand_is_slc() to catch use before
correct initialization.

Signed-off-by: default avatarLothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: default avatarBoris Brezillon <boris.brezillon@free-electrons.com>
parent 69fc0129

include/linux/mtd/rawnand.h

+2 −0
Original line number Diff line number Diff line
@@ -1234,6 +1234,8 @@ int onfi_init_data_interface(struct nand_chip *chip, 
 */

static inline bool nand_is_slc(struct nand_chip *chip)

{

	WARN(chip->bits_per_cell == 0,

	     "chip->bits_per_cell is used uninitialized\n");

	return chip->bits_per_cell == 1;

}