Commit bcee1609 authored Jul 13, 2020 by Evgeny Novikov Committed by Bartlomiej Zolnierkiewicz Sep 08, 2020

fbdev: sm712fb: handle ioremap() errors in probe

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

parent a49145ac

drivers/video/fbdev/sm712fb.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -1604,6 +1604,14 @@ 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);

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