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authorDavid S. Miller <davem@davemloft.net>2016-09-12 15:52:44 -0700
committerDavid S. Miller <davem@davemloft.net>2016-09-12 15:52:44 -0700
commitb20b378d49926b82c0a131492fa8842156e0e8a9 (patch)
tree7196847eea049a46442b05f99aee1dc571019381 /drivers/usb/renesas_usbhs/mod.c
parent02154927c115c7599677df57203988e05b576346 (diff)
parentda499f8f5385c181e29978fdaab15a58de185302 (diff)
downloadop-kernel-dev-b20b378d49926b82c0a131492fa8842156e0e8a9.zip
op-kernel-dev-b20b378d49926b82c0a131492fa8842156e0e8a9.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/ethernet/mediatek/mtk_eth_soc.c drivers/net/ethernet/qlogic/qed/qed_dcbx.c drivers/net/phy/Kconfig All conflicts were cases of overlapping commits. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/usb/renesas_usbhs/mod.c')
-rw-r--r--drivers/usb/renesas_usbhs/mod.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c
index d4be5d5..28965ef 100644
--- a/drivers/usb/renesas_usbhs/mod.c
+++ b/drivers/usb/renesas_usbhs/mod.c
@@ -282,9 +282,16 @@ static irqreturn_t usbhs_interrupt(int irq, void *data)
if (usbhs_mod_is_host(priv))
usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
- usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
+ /*
+ * The driver should not clear the xxxSTS after the line of
+ * "call irq callback functions" because each "if" statement is
+ * possible to call the callback function for avoiding any side effects.
+ */
+ if (irq_state.intsts0 & BRDY)
+ usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
usbhs_write(priv, NRDYSTS, ~irq_state.nrdysts);
- usbhs_write(priv, BEMPSTS, ~irq_state.bempsts);
+ if (irq_state.intsts0 & BEMP)
+ usbhs_write(priv, BEMPSTS, ~irq_state.bempsts);
/*
* call irq callback functions
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