diff options
| author | Mark Brown <broonie@kernel.org> | 2018-10-01 12:14:51 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-10-01 12:14:51 +0100 |
| commit | c46dfa3b9768d6cd6c5fd562bdaa371a172a6c00 (patch) | |
| tree | d6a2f6732b08831b7036c5e15499aadc858a648f /drivers/mtd/mtdchar.c | |
| parent | 827ca3b0b92946f4dbf2b6178035163016a12cec (diff) | |
| parent | 46f9f7c3c326389d5765c28f120fead6cc068e67 (diff) | |
Merge tag 'v4.9.130' into linux-linaro-lsk-v4.9lsk-v4.9-18.09
This is the 4.9.130 stable release
# gpg: Signature made Sat 29 Sep 2018 11:07:36 BST
# gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E
# gpg: Good signature from "Greg Kroah-Hartman <gregkh@linuxfoundation.org>" [unknown]
# gpg: aka "Greg Kroah-Hartman (Linux kernel stable release signing key) <greg@kroah.com>" [unknown]
# gpg: aka "Greg Kroah-Hartman <gregkh@kernel.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 647F 2865 4894 E3BD 4571 99BE 38DB BDC8 6092 693E
Diffstat (limited to 'drivers/mtd/mtdchar.c')
| -rw-r--r-- | drivers/mtd/mtdchar.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index b4092eab53ac..95b6a6640bca 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -160,8 +160,12 @@ static ssize_t mtdchar_read(struct file *file, char __user *buf, size_t count, pr_debug("MTD_read\n"); - if (*ppos + count > mtd->size) - count = mtd->size - *ppos; + if (*ppos + count > mtd->size) { + if (*ppos < mtd->size) + count = mtd->size - *ppos; + else + count = 0; + } if (!count) return 0; @@ -246,7 +250,7 @@ static ssize_t mtdchar_write(struct file *file, const char __user *buf, size_t c pr_debug("MTD_write\n"); - if (*ppos == mtd->size) + if (*ppos >= mtd->size) return -ENOSPC; if (*ppos + count > mtd->size) |