diff options
Diffstat (limited to 'target/linux/generic/files/drivers/mtd/nand/mtk_bmt.c')
-rw-r--r-- | target/linux/generic/files/drivers/mtd/nand/mtk_bmt.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/target/linux/generic/files/drivers/mtd/nand/mtk_bmt.c b/target/linux/generic/files/drivers/mtd/nand/mtk_bmt.c index e7238ee62b..721eb0e6f0 100644 --- a/target/linux/generic/files/drivers/mtd/nand/mtk_bmt.c +++ b/target/linux/generic/files/drivers/mtd/nand/mtk_bmt.c @@ -111,9 +111,12 @@ mtk_bmt_read(struct mtd_info *mtd, loff_t from, u32 offset = from & (bmtd.blk_size - 1); u32 block = from >> bmtd.blk_shift; - u32 cur_block; + int cur_block; cur_block = bmtd.ops->get_mapping_block(block); + if (cur_block < 0) + return -EIO; + cur_from = ((loff_t)cur_block << bmtd.blk_shift) + offset; cur_ops.oobretlen = 0; @@ -174,9 +177,12 @@ mtk_bmt_write(struct mtd_info *mtd, loff_t to, while (ops->retlen < ops->len || ops->oobretlen < ops->ooblen) { u32 offset = to & (bmtd.blk_size - 1); u32 block = to >> bmtd.blk_shift; - u32 cur_block; + int cur_block; cur_block = bmtd.ops->get_mapping_block(block); + if (cur_block < 0) + return -EIO; + cur_to = ((loff_t)cur_block << bmtd.blk_shift) + offset; cur_ops.oobretlen = 0; @@ -219,7 +225,8 @@ mtk_bmt_mtd_erase(struct mtd_info *mtd, struct erase_info *instr) int retry_count = 0; u64 start_addr, end_addr; int ret; - u16 orig_block, block; + u16 orig_block; + int block; start_addr = instr->addr & (~mtd->erasesize_mask); end_addr = instr->addr + instr->len; @@ -227,6 +234,8 @@ mtk_bmt_mtd_erase(struct mtd_info *mtd, struct erase_info *instr) while (start_addr < end_addr) { orig_block = start_addr >> bmtd.blk_shift; block = bmtd.ops->get_mapping_block(orig_block); + if (block < 0) + return -EIO; mapped_instr.addr = (loff_t)block << bmtd.blk_shift; ret = bmtd._erase(mtd, &mapped_instr); if (ret) { @@ -265,7 +274,11 @@ static int mtk_bmt_block_markbad(struct mtd_info *mtd, loff_t ofs) { u16 orig_block = ofs >> bmtd.blk_shift; - u16 block = bmtd.ops->get_mapping_block(orig_block); + int block; + + block = bmtd.ops->get_mapping_block(orig_block); + if (block < 0) + return -EIO; bmtd.ops->remap_block(orig_block, block, bmtd.blk_size); @@ -298,7 +311,11 @@ static int mtk_bmt_debug_mark_good(void *data, u64 val) static int mtk_bmt_debug_mark_bad(void *data, u64 val) { u32 block = val >> bmtd.blk_shift; - u16 cur_block = bmtd.ops->get_mapping_block(block); + int cur_block; + + cur_block = bmtd.ops->get_mapping_block(block); + if (cur_block < 0) + return -EIO; bmtd.ops->remap_block(block, cur_block, bmtd.blk_size); |