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mpfs/mpfs_usb.c: Fix interrupt handling in SMP mode

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The interrupt handler accesses the device as well as the driver's private
data. Thus, must take the big kernel lock in SMP mode to protect them.

Signed-off-by: Jukka Laitinen <jukka.laitinen@tii.ae>
This commit is contained in:
Ville Juven
2025-04-25 13:41:26 +03:00
committed by Xiang Xiao
parent 72bba3b2ee
commit 67b17cb4d7
1 changed files with 10 additions and 0 deletions
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arch/risc-v/src/mpfs/mpfs_usb.c
+10
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@@ -3430,6 +3430,10 @@ static int mpfs_usb_interrupt(int irq, void *context, void *arg)
uint16_t pending_tx_ep;
int i;
#ifdef CONFIG_SMP
irqstate_t flags = enter_critical_section();
#endif
/* Get the device interrupts */
isr = getreg8(MPFS_USB_IRQ);
@@ -3455,6 +3459,9 @@ static int mpfs_usb_interrupt(int irq, void *context, void *arg)
priv->usbdev.dualspeed = 1;
#endif
#ifdef CONFIG_SMP
leave_critical_section(flags);
#endif
return OK;
}
@@ -3539,6 +3546,9 @@ static int mpfs_usb_interrupt(int irq, void *context, void *arg)
mpfs_resume(priv);
}
#ifdef CONFIG_SMP
leave_critical_section(flags);
#endif
return OK;
}