staging: sm750fb: remove proc_checkMode method from lynxfb_output

The proc_checkMode of lynxfb_output is set to function that always
returns 0. Calling that function and checking for its return value is
meaningless.
Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/sm750fb/sm750.c

@@ -588,10 +588,7 @@ static int lynxfb_ops_check_var(struct fb_var_screeninfo *var,
 		return -ENOMEM;
 	}
 
-	ret = output->proc_checkMode(output, var);
-	if (!ret)
-		ret = crtc->proc_checkMode(crtc, var);
-	return ret;
+	return crtc->proc_checkMode(crtc, var);
 }
 
 static int lynxfb_ops_setcolreg(unsigned regno,
@@ -690,7 +687,6 @@ static int sm750fb_set_drv(struct lynxfb_par *par)
 	crtc->ywrapstep = 0;
 
 	output->proc_setMode = hw_sm750_output_setMode;
-	output->proc_checkMode = hw_sm750_output_checkMode;
 
 	output->proc_setBLANK = (share->revid == SM750LE_REVISION_ID) ?
 				 hw_sm750le_setBLANK : hw_sm750_setBLANK;

drivers/staging/sm750fb/sm750.h

@@ -143,7 +143,6 @@ struct lynxfb_output {
 						struct fb_var_screeninfo*,
 						struct fb_fix_screeninfo*);
 
-	int (*proc_checkMode)(struct lynxfb_output*, struct fb_var_screeninfo*);
 	int (*proc_setBLANK)(struct lynxfb_output*, int);
 	void  (*clear)(struct lynxfb_output *);
 };

drivers/staging/sm750fb/sm750_hw.c

@@ -190,15 +190,6 @@ resource_size_t hw_sm750_getVMSize(struct lynx_share *share)
 	return ret;
 }
 
-
-
-int hw_sm750_output_checkMode(struct lynxfb_output *output, struct fb_var_screeninfo *var)
-{
-
-	return 0;
-}
-
-
 int hw_sm750_output_setMode(struct lynxfb_output *output,
 									struct fb_var_screeninfo *var, struct fb_fix_screeninfo *fix)
 {

drivers/staging/sm750fb/sm750_hw.h

@@ -85,7 +85,6 @@ int hw_sm750_deWait(void);
 int hw_sm750le_deWait(void);
 
 resource_size_t hw_sm750_getVMSize(struct lynx_share *);
-int hw_sm750_output_checkMode(struct lynxfb_output*, struct fb_var_screeninfo*);
 int hw_sm750_output_setMode(struct lynxfb_output*, struct fb_var_screeninfo*, struct fb_fix_screeninfo*);
 int hw_sm750_crtc_checkMode(struct lynxfb_crtc*, struct fb_var_screeninfo*);
 int hw_sm750_crtc_setMode(struct lynxfb_crtc*, struct fb_var_screeninfo*, struct fb_fix_screeninfo*);