diff options
| author | Rashika Kheria <rashika.kheria@gmail.com> | 2013-10-30 04:16:55 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-30 09:24:39 -0700 |
| commit | 723a2311fa4a3cf64ee7b435ba64f797ee2a568a (patch) | |
| tree | a7cf31877ccda732d36b6ec85c8959b43dad3324 /drivers | |
| parent | 4759e82481e155745af3f639158b1b53925cc3db (diff) | |
Staging: dwc2: Fix variable dereferenced before check
This patch fixes the following smatch warning in hcd_intr.c-
drivers/staging/dwc2/hcd_intr.c:1946 dwc2_hc_n_intr() warn: variable dereferenced before check 'chan' (see line 1936)
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/dwc2/hcd_intr.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/staging/dwc2/hcd_intr.c b/drivers/staging/dwc2/hcd_intr.c index cad433a75aba..dda18540f5a7 100644 --- a/drivers/staging/dwc2/hcd_intr.c +++ b/drivers/staging/dwc2/hcd_intr.c @@ -1932,23 +1932,22 @@ static void dwc2_hc_n_intr(struct dwc2_hsotg *hsotg, int chnum) chan = hsotg->hc_ptr_array[chnum]; - if (dbg_hc(chan)) - dev_vdbg(hsotg->dev, "--Host Channel Interrupt--, Channel %d\n", - chnum); - hcint = readl(hsotg->regs + HCINT(chnum)); hcintmsk = readl(hsotg->regs + HCINTMSK(chnum)); - if (dbg_hc(chan)) - dev_vdbg(hsotg->dev, - " hcint 0x%08x, hcintmsk 0x%08x, hcint&hcintmsk 0x%08x\n", - hcint, hcintmsk, hcint & hcintmsk); - if (!chan) { dev_err(hsotg->dev, "## hc_ptr_array for channel is NULL ##\n"); writel(hcint, hsotg->regs + HCINT(chnum)); return; } + if (dbg_hc(chan)) { + dev_vdbg(hsotg->dev, "--Host Channel Interrupt--, Channel %d\n", + chnum); + dev_vdbg(hsotg->dev, + " hcint 0x%08x, hcintmsk 0x%08x, hcint&hcintmsk 0x%08x\n", + hcint, hcintmsk, hcint & hcintmsk); + } + writel(hcint, hsotg->regs + HCINT(chnum)); chan->hcint = hcint; hcint &= hcintmsk; |