fix warn in intel_reg_snapshot: ignoring return value of 'write'

Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/tools/intel_reg_snapshot.c b/tools/intel_reg_snapshot.c
index 83e76e5..9c5fa83 100644 (file)
--- a/tools/intel_reg_snapshot.c
+++ b/tools/intel_reg_snapshot.c
@@ -25,6 +25,7 @@
  */
 
 #include <unistd.h>
+#include <assert.h>
 #include "intel_gpu_tools.h"
 
 int main(int argc, char** argv)
@@ -32,6 +33,7 @@ int main(int argc, char** argv)
        struct pci_device *pci_dev;
        uint32_t devid;
        int mmio_bar;
+       int ret;
 
        pci_dev = intel_get_pci_device();
        devid = pci_dev->device_id;
@@ -42,7 +44,8 @@ int main(int argc, char** argv)
        else
                mmio_bar = 0;
 
-       write(1, mmio, pci_dev->regions[mmio_bar].size);
+       ret = write(1, mmio, pci_dev->regions[mmio_bar].size);
+       assert(ret > 0);
 
        return 0;
 }