staging: fbtft: fix unchecked write return value in fb_agm1264k-fl

The second call to par->fbtftops.write() does not capture the return
value, so the subsequent error check tests a stale value from the
first write call. Add the missing assignment so the error check
applies to the correct write operation.

Signed-off-by: Artem Lytkin <iprintercanon@gmail.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Link: https://patch.msgid.link/20260207220523.3816-1-iprintercanon@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/fbtft/fb_agm1264k-fl.c b/drivers/staging/fbtft/fb_agm1264k-fl.c
index af2dbebefc72beabff6c311ceb0472e47517d68e..6fc8f4e9c814d88c361d84876827e057bd46fa22 100644 (file)
--- a/drivers/staging/fbtft/fb_agm1264k-fl.c
+++ b/drivers/staging/fbtft/fb_agm1264k-fl.c
@@ -376,7 +376,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 
                        /* write bitmap */
                        gpiod_set_value(par->RS, 1); /* RS->1 (data mode) */
-                       par->fbtftops.write(par, buf, len);
+                       ret = par->fbtftops.write(par, buf, len);
                        if (ret < 0)
                                dev_err(par->info->device,
                                        "write failed and returned: %d\n",