[PATCH i-g-t v4 3/5] lib/gem_engine_topology: Fix premature break from primary find loop

Janusz Krzysztofik janusz.krzysztofik at linux.intel.com
Thu Jul 18 08:55:14 UTC 2024


When looking for a primary counterpart of a render device, we try to open
each primary minor.  When one fails, we should continue rather then break,
since contiguity of minor numbers assigned to devices is not guaranteed.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik at linux.intel.com>
---
 lib/i915/gem_engine_topology.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/i915/gem_engine_topology.c b/lib/i915/gem_engine_topology.c
index c878e95f08..8589af5c1a 100644
--- a/lib/i915/gem_engine_topology.c
+++ b/lib/i915/gem_engine_topology.c
@@ -479,7 +479,7 @@ static int __open_primary(int dir)
 		sprintf(buf, "/sys/dev/char/%d:%d", major, minor);
 		dir = openat(fd, buf, O_RDONLY);
 		if (dir < 0)
-			break;
+			continue;
 
 		if (readlinkat(dir, "device", device, sizeof(device)) > 0 &&
 		    !strcmp(device, target))
-- 
2.45.2



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