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wil6210: fix PTR_ERR() usage after initialization to constant 

Reported by coccinelle:

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next.git master
head:   6a5d088a92
commit: b7cde47009 [18/80] wil6210: convert debugfs to the table mode

coccinelle warnings: (new ones prefixed by >>)

>> drivers/net/wireless/ath/wil6210/debugfs.c:327:17-24: ERROR: PTR_ERR applied after initialization to constant on line 304

vim +327 drivers/net/wireless/ath/wil6210/debugfs.c

   298                                          struct dentry *dbg, void *base,
   299                                          const struct dbg_off * const tbl)
   300  {
   301          int i;
   302
   303          for (i = 0; tbl[i].name; i++) {

 > 304                  struct dentry *f = NULL;
   305
   306                  switch (tbl[i].type) {
   307                  case doff_u32:
   308                          f = debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg,
   309                                                 base + tbl[i].off);
   310                          break;
   311                  case doff_x32:
   312                          f = debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg,
   313                                                 base + tbl[i].off);
   314                          break;
   315                  case doff_ulong:
   316                          f = wil_debugfs_create_ulong(tbl[i].name, tbl[i].mode,
   317                                                       dbg, base + tbl[i].off);
   318                          break;
   319                  case doff_io32:
   320                          f = wil_debugfs_create_iomem_x32(tbl[i].name,
   321                                                           tbl[i].mode, dbg,
   322                                                           base + tbl[i].off);
   323                          break;
   324                  }
   325                  if (IS_ERR_OR_NULL(f))
   326                          wil_err(wil, "Create file \"%s\": err %ld\n",

 > 327                                  tbl[i].name, PTR_ERR(f));
   328          }
   329  }
   330

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vladimir Kondratiev 2014-09-10 16:34:51 +03:00 committed by John W. Linville
parent 73d839ae50
commit 867fa0d49c
1 changed files with 3 additions and 1 deletions
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4
drivers/net/wireless/ath/wil6210/debugfs.c
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@ -308,7 +308,7 @@ static void wil6210_debugfs_init_offset(struct wil6210_priv *wil,
int i;
for (i = 0; tbl[i].name; i++) {
struct dentry *f = NULL;
struct dentry *f;
switch (tbl[i].type) {
case doff_u32:
@ -328,6 +328,8 @@ static void wil6210_debugfs_init_offset(struct wil6210_priv *wil,
tbl[i].mode, dbg,
base + tbl[i].off);
break;
default:
f = ERR_PTR(-EINVAL);
}
if (IS_ERR_OR_NULL(f))
wil_err(wil, "Create file \"%s\": err %ld\n",