1 files changed, 22 insertions, 3 deletions

diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c
index 82a628f96c03..35c5208f3249 100644
--- a/drivers/usb/renesas_usbhs/mod.c
+++ b/drivers/usb/renesas_usbhs/mod.c
@@ -209,14 +209,18 @@ int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state)
         return (int)irq_state->intsts0 & CTSQ_MASK;
 }
 
-static void usbhs_status_get_each_irq(struct usbhs_priv *priv,
-                                      struct usbhs_irq_state *state)
+static int usbhs_status_get_each_irq(struct usbhs_priv *priv,
+                                     struct usbhs_irq_state *state)
 {
         struct usbhs_mod *mod = usbhs_mod_get_current(priv);
+        u16 intenb0, intenb1;
 
         state->intsts0 = usbhs_read(priv, INTSTS0);
         state->intsts1 = usbhs_read(priv, INTSTS1);
 
+        intenb0 = usbhs_read(priv, INTENB0);
+        intenb1 = usbhs_read(priv, INTENB1);
+
         /* mask */
         if (mod) {
                 state->brdysts = usbhs_read(priv, BRDYSTS);
@@ -226,6 +230,20 @@ static void usbhs_status_get_each_irq(struct usbhs_priv *priv,
                 state->bempsts &= mod->irq_bempsts;
                 state->brdysts &= mod->irq_brdysts;
         }
+
+        /*
+         * Check whether the irq enable registers and the irq status are set
+         * when IRQF_SHARED is set.
+         */
+        if (priv->irqflags & IRQF_SHARED) {
+                if (!(intenb0 & state->intsts0) &&
+                    !(intenb1 & state->intsts1) &&
+                    !(state->bempsts) &&
+                    !(state->brdysts))
+                        return -EIO;
+        }
+
+        return 0;
 }
 
 /*
@@ -238,7 +256,8 @@ static irqreturn_t usbhs_interrupt(int irq, void *data)
         struct usbhs_priv *priv = data;
         struct usbhs_irq_state irq_state;
 
-        usbhs_status_get_each_irq(priv, &irq_state);
+        if (usbhs_status_get_each_irq(priv, &irq_state) < 0)
+                return IRQ_NONE;
 
         /*
          * clear interrupt