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| author | Ahmad Fatoum <a.fatoum@pengutronix.de> | 2020-09-30 09:20:01 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-10-02 06:00:12 +0200 |
| commit | 01bc873f4e03eff83ce7d8e92c3907eaf559ade6 (patch) | |
| tree | ccb69f4a5dce4e77500b63c5977823ab513aa9ab /drivers/usb | |
| parent | 4be6895a0512e284611054ff39932f768f9a50a4 (diff) | |
| download | barebox-01bc873f4e03eff83ce7d8e92c3907eaf559ade6.tar.gz barebox-01bc873f4e03eff83ce7d8e92c3907eaf559ade6.tar.xz | |
USB: musb: remove dead stores
Reading the interrupt registers has a side-effect, so their value need
not be used for anythig. Storing it into a variable never read
obfuscates this however. Cast to (void) for clarity.
Reported-by: clang-analyzer-10
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/musb/musb_core.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 9fdef8679b..266663a9b0 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -330,7 +330,6 @@ void musb_load_testpacket(struct musb *musb) static void musb_generic_disable(struct musb *musb) { void __iomem *mbase = musb->mregs; - u16 temp; /* disable interrupts */ musb_writeb(mbase, MUSB_INTRUSBE, 0); @@ -343,9 +342,9 @@ static void musb_generic_disable(struct musb *musb) musb_writeb(mbase, MUSB_DEVCTL, 0); /* flush pending interrupts */ - temp = musb_readb(mbase, MUSB_INTRUSB); - temp = musb_readw(mbase, MUSB_INTRTX); - temp = musb_readw(mbase, MUSB_INTRRX); + (void)musb_readb(mbase, MUSB_INTRUSB); + (void)musb_readw(mbase, MUSB_INTRTX); + (void)musb_readw(mbase, MUSB_INTRRX); } |