kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

soc/tegra: fuse: Move register mapping check

Browse source 
The tegra_read_chipid() function can be called from places other than
tegra_get_chip_id(), so the check for a valid mapping of the MISC
registers needs to be moved to tegra_read_chipid() to catch all
potential accesses.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2017-06-26 17:21:17 +02:00
parent 83468fe259
commit 1f1607dbd9
1 changed files with 5 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
drivers/soc/tegra/fuse/tegra-apbmisc.c
View file

@ -38,17 +38,17 @@ static void __iomem *strapping_base;
static bool long_ram_code;
u32 tegra_read_chipid(void)
{
return readl_relaxed(apbmisc_base + 4);
}
u8 tegra_get_chip_id(void)
{
if (!apbmisc_base) {
WARN(1, "Tegra Chip ID not yet available\n");
return 0;
}
return readl_relaxed(apbmisc_base + 4);
}
u8 tegra_get_chip_id(void)
{
return (tegra_read_chipid() >> 8) & 0xff;
}