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authorpekon gupta <pekon@ti.com>2014-04-11 12:55:35 +0530
committerTom Rini <trini@ti.com>2014-06-06 17:46:00 -0400
commit3f990dc83bc3197b17bd847241671917826152cc (patch)
tree60f13c8f784a1df0d5252d8a6262f4239295ff28 /drivers/mtd/nand
parenta09431da381ce8d1b4d48e1cbca5f2b4eea662f4 (diff)
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mtd: nand: omap: fix error-codes returned from omap-elm driver
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>
Diffstat (limited to 'drivers/mtd/nand')
-rw-r--r--drivers/mtd/nand/omap_elm.c7
-rw-r--r--drivers/mtd/nand/omap_gpmc.c8
2 files changed, 9 insertions, 6 deletions
diff --git a/drivers/mtd/nand/omap_elm.c b/drivers/mtd/nand/omap_elm.c
index afa629a..d963e6c 100644
--- a/drivers/mtd/nand/omap_elm.c
+++ b/drivers/mtd/nand/omap_elm.c
@@ -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) &
diff --git a/drivers/mtd/nand/omap_gpmc.c b/drivers/mtd/nand/omap_gpmc.c
index 2d893e1..d2fedf9 100644
--- a/drivers/mtd/nand/omap_gpmc.c
+++ b/drivers/mtd/nand/omap_gpmc.c
@@ -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) {