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fbdev: sm712fb: handle ioremap() errors in probe

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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@ispras.ru>
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Teddy Wang <teddy.wang@siliconmotion.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200713080532.15504-1-novikov@ispras.ru
This commit is contained in:
Evgeny Novikov 2020-07-13 11:05:32 +03:00 committed by Bartlomiej Zolnierkiewicz
parent a49145acfb
commit bcee1609ba
1 changed files with 8 additions and 0 deletions
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8
drivers/video/fbdev/sm712fb.c
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@ -1604,6 +1604,14 @@ static int smtcfb_pci_probe(struct pci_dev *pdev,
sfb->fb->fix.mmio_start = mmio_base; sfb->fb->fix.mmio_start = mmio_base;
sfb->fb->fix.mmio_len = 0x00200000; sfb->fb->fix.mmio_len = 0x00200000;
sfb->dp_regs = ioremap(mmio_base, 0x00200000 + smem_size); 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->lfb = sfb->dp_regs + 0x00200000;
sfb->mmio = (smtc_regbaseaddress = sfb->mmio = (smtc_regbaseaddress =
sfb->dp_regs + 0x000c0000); sfb->dp_regs + 0x000c0000);