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tobluxUlrich Hecht
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fbdev: pxafb: Fix multiple clamped values in pxafb_adjust_timing
commit 0155e868cbc111846cc2809c1546ea53810a56ae upstream. The variables were never clamped because the return value of clamp_val() was not used. Fix this by assigning the clamped values, and use clamp() instead of clamp_val(). Cc: stable@vger.kernel.org Fixes: 3f16ff6 ("[ARM] pxafb: cleanup of the timing checking code") Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ulrich Hecht <uli@kernel.org>
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Lines changed: 6 additions & 6 deletions

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drivers/video/fbdev/pxafb.c

Lines changed: 6 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -418,12 +418,12 @@ static int pxafb_adjust_timing(struct pxafb_info *fbi,
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var->yres = max_t(int, var->yres, MIN_YRES);
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if (!(fbi->lccr0 & LCCR0_LCDT)) {
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clamp_val(var->hsync_len, 1, 64);
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clamp_val(var->vsync_len, 1, 64);
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clamp_val(var->left_margin, 1, 255);
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clamp_val(var->right_margin, 1, 255);
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clamp_val(var->upper_margin, 1, 255);
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clamp_val(var->lower_margin, 1, 255);
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var->hsync_len = clamp(var->hsync_len, 1, 64);
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var->vsync_len = clamp(var->vsync_len, 1, 64);
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var->left_margin = clamp(var->left_margin, 1, 255);
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var->right_margin = clamp(var->right_margin, 1, 255);
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var->upper_margin = clamp(var->upper_margin, 1, 255);
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var->lower_margin = clamp(var->lower_margin, 1, 255);
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}
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/* make sure each line is aligned on word boundary */

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