[PATCH 4.4 29/37] sparc64: Convert copy_in_user to accurate exception reporting.

4.4-stable review patch. If anyone has any objections, please let me know. -- From: "David S. Miller" [ Upstream commit 0096ac9f47b1a2e851b3165d44065d18e5f13d58 ] Report the exact number of bytes which have not been successfully copied when an exception

[PATCH 4.4 29/37] sparc64: Convert copy_in_user to accurate exception reporting.

4.4-stable review patch. If anyone has any objections, please let me know. -- From: "David S. Miller" [ Upstream commit 0096ac9f47b1a2e851b3165d44065d18e5f13d58 ] Report the exact number of bytes which have not been successfully copied when an exception occurs, using the