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mtd: nand: omap: fix error-codes returned from omap-elm driver

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This patch
 omap-elm.c: replaces -ve integer value returned during errorneous condition,
             with proper error-codes.
 omap-gpmc.c: updates omap-gpmc driver to pass error-codes returned from
             omap-elm driver to upper layers

Signed-off-by: Pekon Gupta <pekon@ti.com>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
pekon gupta 2014-04-11 12:55:35 +05:30 committed by Tom Rini
parent a09431da38
commit 3f990dc83b
2 changed files with 9 additions and 6 deletions
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7
drivers/mtd/nand/omap_elm.c
View file

@ -19,6 +19,7 @@
#include <linux/mtd/omap_elm.h>
#include <asm/arch/hardware.h>
#define DRIVER_NAME "omap-elm"
#define ELM_DEFAULT_POLY (0)
struct elm *elm_cfg;
@ -113,8 +114,10 @@ int elm_check_error(u8 *syndrome, enum bch_level bch_type, u32 *error_count,
/* check if correctable */
location_status = readl(&elm_cfg->error_location[poly].location_status);
if (!(location_status & ELM_LOCATION_STATUS_ECC_CORRECTABLE_MASK))
return -1;
if (!(location_status & ELM_LOCATION_STATUS_ECC_CORRECTABLE_MASK)) {
printf("%s: uncorrectable ECC errors\n", DRIVER_NAME);
return -EBADMSG;
}
/* get error count */
*error_count = readl(&elm_cfg->error_location[poly].location_status) &

8
drivers/mtd/nand/omap_gpmc.c
View file

@ -370,10 +370,10 @@ static int omap_correct_data_bch(struct mtd_info *mtd, uint8_t *dat,
}
/* use elm module to check for errors */
elm_config(bch_type);
if (elm_check_error(calc_ecc, bch_type, &error_count, error_loc)) {
printf("nand: error: uncorrectable ECC errors\n");
return -EINVAL;
}
err = elm_check_error(calc_ecc, bch_type, &error_count, error_loc);
if (err)
return err;
/* correct bch error */
for (count = 0; count < error_count; count++) {
switch (info->ecc_scheme) {