staging: axis-fifo: remove unneeded irq field from struct axis_fifo

The irq number returned by platform_get_irq() is stored in struct axis_fifo
during probe but it is never used afterwards. Drop the redundant irq field
and use a local variable instead.

Signed-off-by: Ovidiu Panait <ovidiu.panait.oss@gmail.com>
Link: https://lore.kernel.org/r/20250919195400.3180039-3-ovidiu.panait.oss@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/axis-fifo/axis-fifo.c b/drivers/staging/axis-fifo/axis-fifo.c
index d01f4809fc2bc62401ff5f23f9b6500c4aea0e61..62fca919a52575e21a8571caa3b8283037bbed38 100644 (file)
--- a/drivers/staging/axis-fifo/axis-fifo.c
+++ b/drivers/staging/axis-fifo/axis-fifo.c
@@ -117,7 +117,6 @@ MODULE_PARM_DESC(write_timeout, "ms to wait before blocking write() timing out;
 
 struct axis_fifo {
        int id;
-       int irq; /* interrupt */
        void __iomem *base_addr; /* kernel space memory */
 
        unsigned int rx_fifo_depth; /* max words in the receive fifo */
@@ -581,6 +580,7 @@ static int axis_fifo_probe(struct platform_device *pdev)
        struct axis_fifo *fifo = NULL;
        char *device_name;
        int rc = 0; /* error return value */
+       int irq;
 
        /* ----------------------------
         *     init wrapper device
@@ -634,17 +634,16 @@ static int axis_fifo_probe(struct platform_device *pdev)
         */
 
        /* get IRQ resource */
-       rc = platform_get_irq(pdev, 0);
-       if (rc < 0)
-               return rc;
+       irq = platform_get_irq(pdev, 0);
+       if (irq < 0)
+               return irq;
 
        /* request IRQ */
-       fifo->irq = rc;
-       rc = devm_request_irq(fifo->dt_device, fifo->irq, &axis_fifo_irq, 0,
+       rc = devm_request_irq(fifo->dt_device, irq, &axis_fifo_irq, 0,
                              DRIVER_NAME, fifo);
        if (rc) {
                dev_err(fifo->dt_device, "couldn't allocate interrupt %i\n",
-                       fifo->irq);
+                       irq);
                return rc;
        }