android/android_kernel_cmhtcleo
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htcleo: avoid divide by zero on len=0 ooblen=0 in nand driver

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This commit is contained in:
rajkosto 2010-10-16 18:56:31 +02:00
parent 583d8a2c82
commit 12fd0c3638
1 changed files with 12 additions and 2 deletions
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14
drivers/mtd/devices/htcleo_nand.c
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@ -554,7 +554,12 @@ static int msm_nand_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_o
}
}
if (oob_count > 0 && ops->ooboffs != 0)
if (!readdata && !readoob)
{
pr_err("%s: nothing to do\n", __func__);
return -EINVAL;
}
if (readoob && ops->ooboffs != 0)
{
pr_err("%s: unsupported ops->ooboffs, %d\n", __func__, ops->ooboffs);
return -EINVAL;
@ -1106,7 +1111,12 @@ msm_nand_write_oob(struct mtd_info *mtd, loff_t to, struct mtd_oob_ops *ops)
}
}
if (oob_count != 0 && ops->ooboffs != 0)
if (!writedata && !writeoob)
{
pr_err("%s: nothing to do\n", __func__);
return -EINVAL;
}
if (writeoob && ops->ooboffs != 0)
{
pr_err("%s: unsupported ops->ooboffs, %d\n", __func__, ops->ooboffs);
return -EINVAL;