modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/drivers/video/fbdev/core/fbcvt.c
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@@ -214,9 +214,11 @@
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 static void fb_cvt_print_name(struct fb_cvt_data *cvt)
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 {
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 	u32 pixcount, pixcount_mod;
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-	int cnt = 255, offset = 0, read = 0;
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-	u8 *buf = kzalloc(256, GFP_KERNEL);
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+	int size = 256;
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+	int off = 0;
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+	u8 *buf;
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+	buf = kzalloc(size, GFP_KERNEL);
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 	if (!buf)
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 		return;
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..
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@@ -224,43 +226,30 @@
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 	pixcount_mod = (cvt->xres * (cvt->yres/cvt->interlace)) % 1000000;
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 	pixcount_mod /= 1000;
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-	read = snprintf(buf+offset, cnt, "fbcvt: %dx%d@%d: CVT Name - ",
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-			cvt->xres, cvt->yres, cvt->refresh);
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-	offset += read;
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-	cnt -= read;
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+	off += scnprintf(buf + off, size - off, "fbcvt: %dx%d@%d: CVT Name - ",
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+			    cvt->xres, cvt->yres, cvt->refresh);
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-	if (cvt->status)
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-		snprintf(buf+offset, cnt, "Not a CVT standard - %d.%03d Mega "
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-			 "Pixel Image\n", pixcount, pixcount_mod);
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-	else {
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-		if (pixcount) {
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-			read = snprintf(buf+offset, cnt, "%d", pixcount);
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-			cnt -= read;
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-			offset += read;
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-		}
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+	if (cvt->status) {
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+		off += scnprintf(buf + off, size - off,
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+				 "Not a CVT standard - %d.%03d Mega Pixel Image\n",
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+				 pixcount, pixcount_mod);
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+	} else {
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+		if (pixcount)
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+			off += scnprintf(buf + off, size - off, "%d", pixcount);
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-		read = snprintf(buf+offset, cnt, ".%03dM", pixcount_mod);
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-		cnt -= read;
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-		offset += read;
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+		off += scnprintf(buf + off, size - off, ".%03dM", pixcount_mod);
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 		if (cvt->aspect_ratio == 0)
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-			read = snprintf(buf+offset, cnt, "3");
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+			off += scnprintf(buf + off, size - off, "3");
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 		else if (cvt->aspect_ratio == 3)
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-			read = snprintf(buf+offset, cnt, "4");
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+			off += scnprintf(buf + off, size - off, "4");
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 		else if (cvt->aspect_ratio == 1 || cvt->aspect_ratio == 4)
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-			read = snprintf(buf+offset, cnt, "9");
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+			off += scnprintf(buf + off, size - off, "9");
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 		else if (cvt->aspect_ratio == 2)
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-			read = snprintf(buf+offset, cnt, "A");
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-		else
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-			read = 0;
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-		cnt -= read;
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-		offset += read;
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+			off += scnprintf(buf + off, size - off, "A");
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-		if (cvt->flags & FB_CVT_FLAG_REDUCED_BLANK) {
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-			read = snprintf(buf+offset, cnt, "-R");
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-			cnt -= read;
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-			offset += read;
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-		}
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+		if (cvt->flags & FB_CVT_FLAG_REDUCED_BLANK)
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+			off += scnprintf(buf + off, size - off, "-R");
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 	}
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 	printk(KERN_INFO "%s\n", buf);