smtcfb_pci_probe() does not handle ioremap() errors for case 0x720. The
patch fixes that exactly like for case 0x710/2.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Evgeny Novikov <novikov@xxxxxxxxx>
---
drivers/video/fbdev/sm712fb.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/video/fbdev/sm712fb.c b/drivers/video/fbdev/sm712fb.c
index 6a1b4a853d9e..0171b23fa211 100644
--- a/drivers/video/fbdev/sm712fb.c
+++ b/drivers/video/fbdev/sm712fb.c
@@ -1602,6 +1602,14 @@ static int smtcfb_pci_probe(struct pci_dev *pdev,
sfb->fb->fix.mmio_start = mmio_base;
sfb->fb->fix.mmio_len = 0x00200000;
sfb->dp_regs = ioremap(mmio_base, 0x00200000 + smem_size);
+ if (!sfb->dp_regs) {
+ dev_err(&pdev->dev,
+ "%s: unable to map memory mapped IO!\n",
+ sfb->fb->fix.id);
+ err = -ENOMEM;
+ goto failed_fb;
+ }
+
sfb->lfb = sfb->dp_regs + 0x00200000;
sfb->mmio = (smtc_regbaseaddress =
sfb->dp_regs + 0x000c0000);
--
2.16.4
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