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| author | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2013-07-11 17:27:12 +0900 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2013-08-22 17:25:02 -0500 |
| commit | e40520b5b585c82d90e94c54cb3035b277e8280f (patch) | |
| tree | 8e73dcba43fa2e2668c1125947203559624eef2a | |
| parent | 6612ab33956ae09c5ba2fde9c1540b519625ba37 (diff) | |
| download | u-boot-imx-e40520b5b585c82d90e94c54cb3035b277e8280f.zip u-boot-imx-e40520b5b585c82d90e94c54cb3035b277e8280f.tar.gz u-boot-imx-e40520b5b585c82d90e94c54cb3035b277e8280f.tar.bz2 | |
cmd_nand: fix a memory leak in nand_dump function
If datbuf = memalign(ARCH_DMA_MINALIGN, nand->writesize);
succeeds and
oobbuf = memalign(ARCH_DMA_MINALIGN, nand->oobsize);
fails, nand_dump function should free databuf.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
| -rw-r--r-- | common/cmd_nand.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/common/cmd_nand.c b/common/cmd_nand.c index 886212a..a66f569 100644 --- a/common/cmd_nand.c +++ b/common/cmd_nand.c @@ -42,6 +42,7 @@ static int nand_dump(nand_info_t *nand, ulong off, int only_oob, int repeat) int i; u_char *datbuf, *oobbuf, *p; static loff_t last; + int ret = 0; if (repeat) off = last + nand->writesize; @@ -49,11 +50,17 @@ static int nand_dump(nand_info_t *nand, ulong off, int only_oob, int repeat) last = off; datbuf = memalign(ARCH_DMA_MINALIGN, nand->writesize); - oobbuf = memalign(ARCH_DMA_MINALIGN, nand->oobsize); - if (!datbuf || !oobbuf) { + if (!datbuf) { puts("No memory for page buffer\n"); return 1; } + + oobbuf = memalign(ARCH_DMA_MINALIGN, nand->oobsize); + if (!oobbuf) { + puts("No memory for page buffer\n"); + ret = 1; + goto free_dat; + } off &= ~(nand->writesize - 1); loff_t addr = (loff_t) off; struct mtd_oob_ops ops; @@ -66,9 +73,8 @@ static int nand_dump(nand_info_t *nand, ulong off, int only_oob, int repeat) i = mtd_read_oob(nand, addr, &ops); if (i < 0) { printf("Error (%d) reading page %08lx\n", i, off); - free(datbuf); - free(oobbuf); - return 1; + ret = 1; + goto free_all; } printf("Page %08lx dump:\n", off); i = nand->writesize >> 4; @@ -91,10 +97,13 @@ static int nand_dump(nand_info_t *nand, ulong off, int only_oob, int repeat) p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]); p += 8; } - free(datbuf); + +free_all: free(oobbuf); +free_dat: + free(datbuf); - return 0; + return ret; } /* ------------------------------------------------------------------------- */ |