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overlay: Fix power reading from debugfs

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2013-08-23 16:02:42 +01:00
parent b22e90bc8b
commit 1b6480114e
1 changed files with 5 additions and 1 deletions
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6
overlay/power.c
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@ -53,6 +53,10 @@ int power_init(struct power *power)
if (len < 0) if (len < 0)
return power->error = errno; return power->error = errno;
buf[len] = '\0';
if (strtoull(buf, 0, 0) == 0)
return power->error = EINVAL;
return 0; return 0;
} }
@ -61,7 +65,7 @@ static uint64_t file_to_u64(const char *name)
char buf[4096]; char buf[4096];
int fd, len; int fd, len;
sprintf(buf, "%s/i915_energy_uJ", name); sprintf(buf, "%s/%s", debugfs_dri_path, name);
fd = open(buf, 0); fd = open(buf, 0);
if (fd < 0) if (fd < 0)
return 0; return 0;