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| author | Luca Coelho <luciano.coelho@intel.com> | 2016-09-28 11:32:35 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2016-10-19 08:40:35 +0300 |
| commit | 276c4b4b74b6d5bc3cab35534409f3ad32464b78 (patch) | |
| tree | cae9149e5e31511f2f8f7b2487ba0484fe14f5f8 /drivers/net/wireless | |
| parent | faead41cc7213ccef5a58c1bf518ac24816fe8a6 (diff) | |
| download | linux-276c4b4b74b6d5bc3cab35534409f3ad32464b78.tar.bz2 | |
iwlwifi: mvm: use ssize_t for len in iwl_debugfs_mem_read()
In iwl_dbgfs_mem_read(), the len variable may become negative and is
compared to < 0 (an error case). Comparing size_t (which is unsigned)
to < 0 causes a warning on certain platforms (like i386):
drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c:1561:5-8: WARNING: Unsigned expression compared with zero: len < 0
To prevent that, use ssize_t for len instead.
Fixes: commit 2b55f43f8e47 ("iwlwifi: mvm: Add mem debugfs entry")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c index 539d718df797..06805a63f091 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c @@ -1529,8 +1529,8 @@ static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, .data = { &cmd, }, .len = { sizeof(cmd) }, }; - size_t delta, len; - ssize_t ret; + size_t delta; + ssize_t ret, len; hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR, DEBUG_GROUP, 0); |