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authorDan Williams <dan.j.williams@intel.com>2015-06-30 20:10:09 +0200
committerDan Williams <dan.j.williams@intel.com>2015-06-30 20:10:09 +0200
commitaf834d457d9ed69e14836b63d0da198fdd2ec706 (patch)
tree204f9f361185a277268d322e95e70ee6c33bd144 /drivers/nvdimm
parentsparse: fix misplaced __pmem definition (diff)
downloadlinux-af834d457d9ed69e14836b63d0da198fdd2ec706.tar.xz
linux-af834d457d9ed69e14836b63d0da198fdd2ec706.zip
libnvdimm: smatch cleanups in __nd_ioctl
Drop use of access_ok() since we are already using copy_{to|from}_user() which do their own access_ok(). Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm')
-rw-r--r--drivers/nvdimm/bus.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
index 8eb22c0ca7ce..73442bd824a7 100644
--- a/drivers/nvdimm/bus.c
+++ b/drivers/nvdimm/bus.c
@@ -535,8 +535,6 @@ static int __nd_ioctl(struct nvdimm_bus *nvdimm_bus, struct nvdimm *nvdimm,
__func__, dimm_name, cmd_name, i);
return -ENXIO;
}
- if (!access_ok(VERIFY_READ, p + in_len, in_size))
- return -EFAULT;
if (in_len < sizeof(in_env))
copy = min_t(u32, sizeof(in_env) - in_len, in_size);
else
@@ -557,8 +555,6 @@ static int __nd_ioctl(struct nvdimm_bus *nvdimm_bus, struct nvdimm *nvdimm,
__func__, dimm_name, cmd_name, i);
return -EFAULT;
}
- if (!access_ok(VERIFY_WRITE, p + in_len + out_len, out_size))
- return -EFAULT;
if (out_len < sizeof(out_env))
copy = min_t(u32, sizeof(out_env) - out_len, out_size);
else
@@ -570,9 +566,6 @@ static int __nd_ioctl(struct nvdimm_bus *nvdimm_bus, struct nvdimm *nvdimm,
}
buf_len = out_len + in_len;
- if (!access_ok(VERIFY_WRITE, p, sizeof(buf_len)))
- return -EFAULT;
-
if (buf_len > ND_IOCTL_MAX_BUFLEN) {
dev_dbg(dev, "%s:%s cmd: %s buf_len: %zu > %d\n", __func__,
dimm_name, cmd_name, buf_len,