diff options
| author | Hefty, Sean <sean.hefty@intel.com> | 2011-10-06 16:33:05 (GMT) |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2011-10-06 16:33:05 (GMT) |
| commit | caf6e3f221ddc12ccabd1cd0ba149561db0090d4 (patch) | |
| tree | 99790c5bdeb1ed62eb0262d78f6f5a7563def9bc | |
| parent | b7ab0b19a85fffaa04ad0b59471d3a607eef0a56 (diff) | |
| download | linux-caf6e3f221ddc12ccabd1cd0ba149561db0090d4.tar.xz | |
RDMA/ucm: Removed checks for unsigned value < 0
cmd is unsigned, no need to check for < 0. Found by code inspection.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
| -rw-r--r-- | drivers/infiniband/core/ucm.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/core/ucma.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/core/user_mad.c | 5 | ||||
| -rw-r--r-- | drivers/infiniband/core/uverbs_main.c | 3 |
4 files changed, 5 insertions, 7 deletions
diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c index 08f948d..b8a0b4a 100644 --- a/drivers/infiniband/core/ucm.c +++ b/drivers/infiniband/core/ucm.c @@ -1122,7 +1122,7 @@ static ssize_t ib_ucm_write(struct file *filp, const char __user *buf, if (copy_from_user(&hdr, buf, sizeof(hdr))) return -EFAULT; - if (hdr.cmd < 0 || hdr.cmd >= ARRAY_SIZE(ucm_cmd_table)) + if (hdr.cmd >= ARRAY_SIZE(ucm_cmd_table)) return -EINVAL; if (hdr.in + sizeof(hdr) > len) diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index 71be5ee..b3f3ddd 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -1270,7 +1270,7 @@ static ssize_t ucma_write(struct file *filp, const char __user *buf, if (copy_from_user(&hdr, buf, sizeof(hdr))) return -EFAULT; - if (hdr.cmd < 0 || hdr.cmd >= ARRAY_SIZE(ucma_cmd_table)) + if (hdr.cmd >= ARRAY_SIZE(ucma_cmd_table)) return -EINVAL; if (hdr.in + sizeof(hdr) > len) diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c index 8d261b6..07db229 100644 --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -458,8 +458,7 @@ static ssize_t ib_umad_write(struct file *filp, const char __user *buf, goto err; } - if (packet->mad.hdr.id < 0 || - packet->mad.hdr.id >= IB_UMAD_MAX_AGENTS) { + if (packet->mad.hdr.id >= IB_UMAD_MAX_AGENTS) { ret = -EINVAL; goto err; } @@ -703,7 +702,7 @@ static int ib_umad_unreg_agent(struct ib_umad_file *file, u32 __user *arg) mutex_lock(&file->port->file_mutex); mutex_lock(&file->mutex); - if (id < 0 || id >= IB_UMAD_MAX_AGENTS || !__get_agent(file, id)) { + if (id >= IB_UMAD_MAX_AGENTS || !__get_agent(file, id)) { ret = -EINVAL; goto out; } diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index 56898b6..7c30e1e 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -557,8 +557,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, if (hdr.in_words * 4 != count) return -EINVAL; - if (hdr.command < 0 || - hdr.command >= ARRAY_SIZE(uverbs_cmd_table) || + if (hdr.command >= ARRAY_SIZE(uverbs_cmd_table) || !uverbs_cmd_table[hdr.command]) return -EINVAL; |