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Date: Mon, 15 Aug 2022 19:54:55 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Hacash Robot <hacashRobot@...tino.com>, William Dean <williamsukatube@...il.com>, Helge Deller <deller@....de> Subject: [PATCH 5.15 051/779] parisc: Check the return value of ioremap() in lba_driver_probe() From: William Dean <williamsukatube@...il.com> commit cf59f34d7f978d14d6520fd80a78a5ad5cb8abf8 upstream. The function ioremap() in lba_driver_probe() can fail, so its return value should be checked. Fixes: 4bdc0d676a643 ("remove ioremap_nocache and devm_ioremap_nocache") Reported-by: Hacash Robot <hacashRobot@...tino.com> Signed-off-by: William Dean <williamsukatube@...il.com> Signed-off-by: Helge Deller <deller@....de> Cc: <stable@...r.kernel.org> # v5.6+ Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/parisc/lba_pci.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/drivers/parisc/lba_pci.c +++ b/drivers/parisc/lba_pci.c @@ -1476,9 +1476,13 @@ lba_driver_probe(struct parisc_device *d u32 func_class; void *tmp_obj; char *version; - void __iomem *addr = ioremap(dev->hpa.start, 4096); + void __iomem *addr; int max; + addr = ioremap(dev->hpa.start, 4096); + if (addr == NULL) + return -ENOMEM; + /* Read HW Rev First */ func_class = READ_REG32(addr + LBA_FCLASS);
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